Polish "Bump gradle/actions from 3.5.0 to 4.0.0"

See gh-41832

.github/actions/prepare-gradle-build/action.yml

@@ -32,7 +32,7 @@ runs:
           ${{ inputs.java-early-access == 'true' && format('{0}-ea', inputs.java-version) || inputs.java-version }}
           ${{ inputs.java-toolchain == 'true' && '17' || '' }}
     - name: Set Up Gradle
-      uses: gradle/actions/setup-gradle@d9c87d481d55275bb5441eef3fe0e46805f9ef70 # v3.5.0
+      uses: gradle/actions/setup-gradle@af1da67850ed9a4cedd57bfd976089dd991e2582 # v4.0.0
       with:
         cache-read-only: false
         develocity-access-key: ${{ inputs.develocity-access-key }}

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

@@ -1,11 +0,0 @@
-name: "Validate Gradle Wrapper"
-on: [push, pull_request]
-permissions:
-  contents: read
-jobs:
-  validation:
-    name: "Validate Gradle Wrapper"
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-      - uses: gradle/actions/wrapper-validation@af1da67850ed9a4cedd57bfd976089dd991e2582 # v4.0.0