Update gradle/actions digest to ac638b0

Author: renovate[bot]

.github/workflows/app-build.yaml

@@ -22,7 +22,7 @@ jobs:
           distribution: temurin
           java-version: 21
       - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@8379f6a1328ee0e06e2bb424dadb7b159856a326 # v4
+        uses: gradle/actions/setup-gradle@ac638b010cf58a27ee6c972d7336334ccaf61c96 # v4
       - name: Assemble debug APKs
         run: ./gradlew assembleDebug
       - name: Create publish bundle