Bump gradle/wrapper-validation-action from 1 to 2 (#376)

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] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/gradle-build.yml

@@ -6,7 +6,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
-    - uses: gradle/wrapper-validation-action@v1
+    - uses: gradle/wrapper-validation-action@v2
     - uses: gradle/gradle-build-action@v2
       name: Check Fladle
       with: