fix(deps): update dependency io.opencensus:opencensus-api to v0.31.1 (#…

…1697)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [io.opencensus:opencensus-api](https://github.com/census-instrumentation/opencensus-java) | `0.31.0` -> `0.31.1` | [![age](https://badges.renovateapi.com/packages/maven/io.opencensus:opencensus-api/0.31.1/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/maven/io.opencensus:opencensus-api/0.31.1/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/maven/io.opencensus:opencensus-api/0.31.1/compatibility-slim/0.31.0)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/maven/io.opencensus:opencensus-api/0.31.1/confidence-slim/0.31.0)](https://docs.renovatebot.com/merge-confidence/) |

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### Release Notes

<details>
<summary>census-instrumentation/opencensus-java</summary>

### [`v0.31.1`](https://github.com/census-instrumentation/opencensus-java/releases/tag/v0.31.1)

[Compare Source](https://github.com/census-instrumentation/opencensus-java/compare/v0.31.0...v0.31.1)

#### What's Changed

-   \[v0.31.x] Fix retry stat measures to match those in grpc-java exactly ([#&#8203;2097](https://github.com/census-instrumentation/opencensus-java/issues/2097))  by [@&#8203;mackenziestarr](https://github.com/mackenziestarr) in [https://github.com/census-instrumentation/opencensus-java/pull/2102](https://github.com/census-instrumentation/opencensus-java/pull/2102)

**Full Changelog**: census-instrumentation/opencensus-java@v0.31.0...v0.31.1

</details>

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pom.xml

@@ -86,7 +86,7 @@
       <dependency>
         <groupId>io.opencensus</groupId>
         <artifactId>opencensus-api</artifactId>
-        <version>0.31.0</version>
+        <version>0.31.1</version>
       </dependency>
       <dependency>
         <groupId>com.google.auto.value</groupId>