chore(deps): update gradle/actions action to v6 (#15)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.github/workflows/build.yml

@@ -16,7 +16,7 @@ jobs:
           distribution: temurin
           java-version: 21
 
-      - uses: gradle/actions/setup-gradle@v5
+      - uses: gradle/actions/setup-gradle@v6
 
       - run: ./gradlew chiseledBuild
 

.github/workflows/release.yml

@@ -28,7 +28,7 @@ jobs:
           ref: ${{ github.ref }}
 
       - name: Set up Gradle
-        uses: gradle/actions/setup-gradle@v5
+        uses: gradle/actions/setup-gradle@v6
 
       - name: Set up JDK 21
         uses: actions/setup-java@v5