chore(deps): update gradle/actions action to v6

Author: renovate[bot]

.github/workflows/main-build.yml

@@ -30,14 +30,14 @@ jobs:
         with:
           node-version: "lts/*"
       - name: Validate Gradle Wrapper
-        uses: gradle/actions/wrapper-validation@v5
+        uses: gradle/actions/wrapper-validation@v6
       - name: Setup Java
         uses: actions/setup-java@v5
         with:
           distribution: temurin
           java-version: 24
       - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@v5
+        uses: gradle/actions/setup-gradle@v6
       - name: Install dependencies
         run: npm clean-install
       - name: Verify the integrity of provenance attestations and registry signatures for installed dependencies