Bump gradle/actions to v6.3.0

Author: mrotteveel

.github/workflows/run-tests.yml

@@ -52,7 +52,7 @@ jobs:
             ${{ matrix.buildProfile }}
           distribution: 'temurin'
       - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@3f131e8634966bd73d06cc69884922b02e6faf92
+        uses: gradle/actions/setup-gradle@9c971963bec38e04b3d30dcc455b5382be2fdbfb
         with:
           cache-read-only: ${{ github.ref != 'refs/heads/master' }}
       - name: Build with Gradle