Pin non-GitHub actions with full sha in workflows

Signed-off-by: kingthorin <[email protected]>

Author: kingthorin

.github/workflows/ci.yml

@@ -19,6 +19,6 @@ jobs:
         with:
           distribution: 'temurin'
           java-version: ${{ matrix.java }}
-      - uses: gradle/actions/setup-gradle@v4
+      - uses: gradle/actions/setup-gradle@cc4fc85e6b35bafd578d5ffbc76a5518407e1af0 # v4.2.1
       - run: ./gradlew assemble
       - run: ./gradlew check