[ELYWEB-246] Update setup-java action to v4 and move maven caching into this action.

Author: darranl

.github/workflows/pr-ci.yaml

@@ -15,15 +15,11 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - name: Set up JDK 11
-        uses: actions/setup-java@v1
+        uses: actions/setup-java@v4
         with:
+          distribution: 'temurin'
           java-version: 11
-      - name: Cache Maven packages
-        uses: actions/cache@v2
-        with:
-          path: ~/.m2
-          key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
-          restore-keys: ${{ runner.os }}-m2
+          cache: 'maven'
       - name: Version Info
         run: mvn -version
       - name: Build with Maven