Bump gradle/wrapper-validation-action from 2 to 3

Bumps [gradle/wrapper-validation-action](https://github.com/gradle/wrapper-validation-action) from 2 to 3.
- [Release notes](https://github.com/gradle/wrapper-validation-action/releases)
- [Commits](gradle/wrapper-validation-action@v2...v3)

---
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/build-fitnesse.yml

@@ -19,7 +19,7 @@ jobs:
           distribution: 'zulu'
           java-version: ${{ matrix.java-version }}
       - name: Validate Gradle wrapper
-        uses: gradle/wrapper-validation-action@v2
+        uses: gradle/wrapper-validation-action@v3
       - name: Remove Java 21 incompatible tests
         if: ${{ matrix.java-version == '21' }}
         run: rm -rf FitNesseRoot/FitNesse/SuiteAcceptanceTests/SuiteSlimTests/SystemExitIsPrevented