Bump gradle/wrapper-validation-action from 1 to 2

Bumps [gradle/wrapper-validation-action](https://github.com/gradle/wrapper-validation-action) from 1 to 2.
- [Release notes](https://github.com/gradle/wrapper-validation-action/releases)
- [Commits](gradle/wrapper-validation-action@v1...v2)

---
updated-dependencies:
- dependency-name: gradle/wrapper-validation-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/tests.yml

@@ -306,7 +306,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           show-progress: 'false'
-      - uses: gradle/wrapper-validation-action@v1
+      - uses: gradle/wrapper-validation-action@v2
   # This ensures that no git merge conflict markers (<<<, ...) are contained
   merge_conflict_job:
     name: Find merge conflicts