Update gradle/actions digest to ac638b0

Author: renovate[bot]

.github/workflows/maven-publish.yml

@@ -30,7 +30,7 @@ jobs:
           tag: ${{ github.event.release.tag_name }}
           generateReleaseNotes: true
       - name: Validate Gradle wrapper
-        uses: gradle/actions/wrapper-validation@8379f6a1328ee0e06e2bb424dadb7b159856a326 # v4
+        uses: gradle/actions/wrapper-validation@ac638b010cf58a27ee6c972d7336334ccaf61c96 # v4
       - name: Set up Java for publishing to Maven Central Repository
         uses: actions/setup-java@c5195efecf7bdfc987ee8bae7a71cb8b11521c00 # v4
         with: