Bump com.google.code.gson:gson from 2.11.0 to 2.12.1

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]>

bom/build.gradle

@@ -106,7 +106,7 @@ ext {
     tinkVersion = '1.15.0'
     tomcatVersion = '10.1.13'
     validationVersion = '2.0.1.Final'
-    gsonVersion = '2.11.0'
+    gsonVersion = '2.12.1'
     antVersion = '1.10.15'
      jnrVersion = '3.1.20'
     //  TODO: cassandraVersion 5.0.1 and 5.0.2 don't work