build(deps): bump com.google.code.gson:gson in /sample-api/clients/java

Bumps [com.google.code.gson:gson](https://github.com/google/gson) from 2.11.0 to 2.12.0.
- [Release notes](https://github.com/google/gson/releases)
- [Changelog](https://github.com/google/gson/blob/main/CHANGELOG.md)
- [Commits](google/gson@gson-parent-2.11.0...gson-parent-2.12.0)

---
updated-dependencies:
- dependency-name: com.google.code.gson:gson
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

sample-api/clients/java/utilities/build.gradle

@@ -20,5 +20,5 @@ dependencies {
     implementation 'com.microsoft.kiota:microsoft-kiota-serialization-form:1.8.2'
     api 'com.azure:azure-identity:1.15.0'
     api 'com.squareup.okhttp3:okhttp:4.12.0'
-    api 'com.google.code.gson:gson:2.11.0'
+    api 'com.google.code.gson:gson:2.12.0'
 }