Update gradle/actions action to v6

Author: renovate[bot]

.github/workflows/gradle-build.yml

@@ -6,13 +6,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v6
-    - uses: gradle/actions/wrapper-validation@v5
+    - uses: gradle/actions/wrapper-validation@v6
     - name: "Set up JDK 17"
       uses: actions/setup-java@v5
       with:
         distribution: 'temurin'
         java-version: '17'
-    - uses: gradle/actions/setup-gradle@v5
+    - uses: gradle/actions/setup-gradle@v6
       name: Setup Gradle
     - name: Check Fladle
       run: ./gradlew assembleDebug assembleDebugAndroidTest printYml check :fladle-plugin:check

.github/workflows/gradle-release.yml

@@ -17,7 +17,7 @@ jobs:
         with:
           java-version: "17"
           distribution: "temurin"
-      - uses: gradle/actions/setup-gradle@v5
+      - uses: gradle/actions/setup-gradle@v6
       - name: Publish to Maven Central
         env:
           ORG_GRADLE_PROJECT_mavenCentralUsername: ${{ secrets.SONATYPE_USERNAME }}