deps: update dependency net.bytebuddy:byte-buddy to v1.15.1 (#3115)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [net.bytebuddy:byte-buddy](https://bytebuddy.net) | `1.14.18` ->
`1.15.1` |
[![age](https://developer.mend.io/api/mc/badges/age/maven/net.bytebuddy:byte-buddy/1.15.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/maven/net.bytebuddy:byte-buddy/1.15.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/maven/net.bytebuddy:byte-buddy/1.14.18/1.15.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/maven/net.bytebuddy:byte-buddy/1.14.18/1.15.1?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

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gax-java/dependencies.properties

@@ -84,7 +84,7 @@ maven.org_mockito_mockito_junit_jupiter=org.mockito:mockito-junit-jupiter:4.11.0
 maven.org_hamcrest_hamcrest_core=org.hamcrest:hamcrest-core:1.3
 maven.com_google_truth_truth=com.google.truth:truth:1.4.4
 maven.com_googlecode_java_diff_utils_diffutils=com.googlecode.java-diff-utils:diffutils:1.3.0
-maven.net_bytebuddy_byte_buddy=net.bytebuddy:byte-buddy:1.14.18
+maven.net_bytebuddy_byte_buddy=net.bytebuddy:byte-buddy:1.15.1
 maven.org_objenesis_objenesis=org.objenesis:objenesis:2.6
 maven.org_junit_jupiter_junit_jupiter_api=org.junit.jupiter:junit-jupiter-api:5.10.3
 maven.org_junit_jupiter_junit_jupiter_params=org.junit.jupiter:junit-jupiter-params:5.10.3