chore(deps): bump com.google.code.gson:gson

Bumps [com.google.code.gson:gson](https://github.com/google/gson) from 2.11.0 to 2.12.1.
- [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-2.12.1)

---
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]>

functionaltest-jenkins-plugin/build.gradle

@@ -39,7 +39,7 @@ dependencies {
     implementation "org.glassfish.jaxb:jaxb-runtime:4.0.5"
 
     implementation 'com.squareup.okhttp3:okhttp:4.12.0'
-    implementation 'com.google.code.gson:gson:2.11.0'
+    implementation 'com.google.code.gson:gson:2.12.1'
     implementation 'io.gsonfire:gson-fire:1.9.0'
     implementation 'javax.xml.bind:jaxb-api:2.3.1'
 }