fix: new actions/cache

Author: samspycher

.github/workflows/mvn.yml

@@ -12,7 +12,7 @@ jobs:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v1
       - name: Cache Docker layers
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ./parsec-docker-test-image/parsec_docker_cache
           key: ${{ runner.os }}-parsec_docker_cache-${{ github.sha }}
@@ -21,8 +21,8 @@ jobs:
       - name: Set up JDK 16
         uses: actions/setup-java@v2
         with:
-          java-version: '16'
-          distribution: 'zulu'
+          java-version: "16"
+          distribution: "zulu"
           architecture: x64
           cache: maven
       - name: Build with Maven
@@ -31,10 +31,9 @@ jobs:
       - name: Set up JDK 8
         uses: actions/setup-java@v2
         with:
-          java-version: '8'
-          distribution: 'zulu'
+          java-version: "8"
+          distribution: "zulu"
           architecture: x64
           cache: maven
       - name: Build with Maven
         run: ./mvnw --batch-mode clean verify
-