Migrate Gradle wrapper validation action. (#66602)

* Migrate Gradel wrapper validation action.

The `gradle/wrapper-validation-action` has been migrated to `gradle/actions/wrapper-validation`.

Read more: https://github.com/gradle/actions/blob/main/docs/deprecation-upgrade-guide.md#the-action-gradlewrapper-validation-action-has-been-replaced-by-gradleactionswrapper-validation.

* FIx botched merge.

* Update gradle/actions version.

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Co-authored-by: desrosj <desrosj@git.wordpress.org>

.github/workflows/gradle-wrapper-validation.yml

@@ -6,7 +6,9 @@ jobs:
         name: 'Validation'
         runs-on: ubuntu-latest
         steps:
-            - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+            - name: Checkout repository
+              uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
               with:
                   show-progress: ${{ runner.debug == '1' && 'true' || 'false' }}
-            - uses: gradle/wrapper-validation-action@v3
+            - name: Validate checksums
+              uses: gradle/actions/wrapper-validation@cc4fc85e6b35bafd578d5ffbc76a5518407e1af0 # v4.2.1