deps: update google auth library dependencies to v1.16.0 (#1471)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [com.google.auth:google-auth-library-credentials](https://github.com/googleapis/google-auth-library-java) | `1.13.0` -> `1.16.0` | [![age](https://badges.renovateapi.com/packages/maven/com.google.auth:google-auth-library-credentials/1.16.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.auth:google-auth-library-credentials/1.16.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.auth:google-auth-library-credentials/1.16.0/compatibility-slim/1.13.0)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.auth:google-auth-library-credentials/1.16.0/confidence-slim/1.13.0)](https://docs.renovatebot.com/merge-confidence/) |
| [com.google.auth:google-auth-library-oauth2-http](https://github.com/googleapis/google-auth-library-java) | `1.13.0` -> `1.16.0` | [![age](https://badges.renovateapi.com/packages/maven/com.google.auth:google-auth-library-oauth2-http/1.16.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/com.google.auth:google-auth-library-oauth2-http/1.16.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/com.google.auth:google-auth-library-oauth2-http/1.16.0/compatibility-slim/1.13.0)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/com.google.auth:google-auth-library-oauth2-http/1.16.0/confidence-slim/1.13.0)](https://docs.renovatebot.com/merge-confidence/) |

---

### ⚠ Dependency Lookup Warnings ⚠

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---

### Release Notes

<details>
<summary>googleapis/google-auth-library-java</summary>

### [`v1.16.0`](https://github.com/googleapis/google-auth-library-java/blob/HEAD/CHANGELOG.md#&#8203;1160-httpsgithubcomgoogleapisgoogle-auth-library-javacomparev1150v1160-2023-02-15)

[Compare Source](https://github.com/googleapis/google-auth-library-java/compare/v1.15.0...v1.16.0)

##### Features

-   Add PKCE to 3LO exchange. ([#&#8203;1146](https://github.com/googleapis/google-auth-library-java/issues/1146)) ([5bf606b](https://github.com/googleapis/google-auth-library-java/commit/5bf606bb8f6d863b44e87587eebf51eaeea4a0ae))

##### Bug Fixes

-   Create and reuse self signed jwt creds for better performance ([#&#8203;1154](https://github.com/googleapis/google-auth-library-java/issues/1154)) ([eaaa8e8](https://github.com/googleapis/google-auth-library-java/commit/eaaa8e89cf69d1e0d581443121f315854d52c75f))
-   Java doc for DefaultPKCEProvider.java ([#&#8203;1148](https://github.com/googleapis/google-auth-library-java/issues/1148)) ([154c127](https://github.com/googleapis/google-auth-library-java/commit/154c1279b3ec96cc34a3225e5e78800ccdda927c))
-   Removed url pattern validation for google urls in external account credential configurations ([#&#8203;1150](https://github.com/googleapis/google-auth-library-java/issues/1150)) ([35495b1](https://github.com/googleapis/google-auth-library-java/commit/35495b1207ffe11712ee996d3e305449752fb87c))

##### Documentation

-   Clarified Maven artifact for HTTP-based clients ([#&#8203;1136](https://github.com/googleapis/google-auth-library-java/issues/1136)) ([b49fc13](https://github.com/googleapis/google-auth-library-java/commit/b49fc13b10d0e326c7296e2aad7a50ea03e774f5))

### [`v1.15.0`](https://github.com/googleapis/google-auth-library-java/blob/HEAD/CHANGELOG.md#&#8203;1150-httpsgithubcomgoogleapisgoogle-auth-library-javacomparev1140v1150-2023-01-25)

[Compare Source](https://github.com/googleapis/google-auth-library-java/compare/v1.14.0...v1.15.0)

##### Features

-   Adds external account authorized user credentials ([#&#8203;1129](https://github.com/googleapis/google-auth-library-java/issues/1129)) ([06bf21a](https://github.com/googleapis/google-auth-library-java/commit/06bf21a6ce9478a35907bd6681e53a0e86ffc83f))
-   Expose scopes granted by user ([#&#8203;1107](https://github.com/googleapis/google-auth-library-java/issues/1107)) ([240c26b](https://github.com/googleapis/google-auth-library-java/commit/240c26bf11652e208469c2a6ea2fc2f383343c25))

##### Bug Fixes

-   AccessToken scopes clean serialization and default as empty list ([#&#8203;1125](https://github.com/googleapis/google-auth-library-java/issues/1125)) ([f55d41f](https://github.com/googleapis/google-auth-library-java/commit/f55d41fa90750464a37a452ff03a8b811ae93425))
-   Enforce Locale.US for AwsRequestSignerTest ([#&#8203;1111](https://github.com/googleapis/google-auth-library-java/issues/1111)) ([aeb1218](https://github.com/googleapis/google-auth-library-java/commit/aeb12182241e75cba664975a83bbcfa2449fb0f5))
-   Ensure both refreshMargin and expirationMargin are set when using OAuth2CredentialsWithRefresh ([#&#8203;1131](https://github.com/googleapis/google-auth-library-java/issues/1131)) ([326e4a1](https://github.com/googleapis/google-auth-library-java/commit/326e4a15dae72b3806b7a640843d7abc669b19c6))

### [`v1.14.0`](https://github.com/googleapis/google-auth-library-java/blob/HEAD/CHANGELOG.md#&#8203;1140-httpsgithubcomgoogleapisgoogle-auth-library-javacomparev1130v1140-2022-12-06)

[Compare Source](https://github.com/googleapis/google-auth-library-java/compare/v1.13.0...v1.14.0)

##### Features

-   Add GDCH support ([#&#8203;1087](https://github.com/googleapis/google-auth-library-java/issues/1087)) ([cfafb2d](https://github.com/googleapis/google-auth-library-java/commit/cfafb2d4c8d6ab3179e709ff09fc09e6dbc11a70))
-   Adding functional tests for Compute Engine ([#&#8203;1105](https://github.com/googleapis/google-auth-library-java/issues/1105)) ([6f32ac3](https://github.com/googleapis/google-auth-library-java/commit/6f32ac3d4db91ff05fd7134ad6c788a16ffe44f4))
-   Introduce Environment Variable for Quota Project Id ([#&#8203;1082](https://github.com/googleapis/google-auth-library-java/issues/1082)) ([040acef](https://github.com/googleapis/google-auth-library-java/commit/040acefec507f419f6e4ec4eab9645a6e3888a15))
-   Next release from main branch is 1.13.0 ([#&#8203;1077](https://github.com/googleapis/google-auth-library-java/issues/1077)) ([d56eee0](https://github.com/googleapis/google-auth-library-java/commit/d56eee07911ba65a685ccba585e71061037ea756))

##### Bug Fixes

-   AwsCredentials should not call metadata server if security creds and region are retrievable through environment vars ([#&#8203;1100](https://github.com/googleapis/google-auth-library-java/issues/1100)) ([1ff5772](https://github.com/googleapis/google-auth-library-java/commit/1ff57720609fdf27f28b9c543c1ef63b57892593))
-   Not loosing the access token when calling UserCredentials#ToBuil… ([#&#8203;993](https://github.com/googleapis/google-auth-library-java/issues/993)) ([84afdb8](https://github.com/googleapis/google-auth-library-java/commit/84afdb8f8d41e781dc93f04626411e10b35689de))

</details>

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gax-java/dependencies.properties

@@ -34,8 +34,8 @@ version.io_grpc=1.51.0
 #   2) Replace all characters which are neither alphabetic nor digits with the underscore ('_') character
 maven.com_google_api_grpc_proto_google_common_protos=com.google.api.grpc:proto-google-common-protos:2.14.2
 maven.com_google_api_grpc_grpc_google_common_protos=com.google.api.grpc:grpc-google-common-protos:2.14.2
-maven.com_google_auth_google_auth_library_oauth2_http=com.google.auth:google-auth-library-oauth2-http:1.13.0
-maven.com_google_auth_google_auth_library_credentials=com.google.auth:google-auth-library-credentials:1.13.0
+maven.com_google_auth_google_auth_library_oauth2_http=com.google.auth:google-auth-library-oauth2-http:1.16.0
+maven.com_google_auth_google_auth_library_credentials=com.google.auth:google-auth-library-credentials:1.16.0
 maven.io_opencensus_opencensus_api=io.opencensus:opencensus-api:0.31.1
 maven.io_opencensus_opencensus_contrib_grpc_metrics=io.opencensus:opencensus-contrib-grpc-metrics:0.31.1
 maven.io_opencensus_opencensus_contrib_http_util=io.opencensus:opencensus-contrib-http-util:0.31.1