Updated the action versions

Author: egonw

.github/workflows/maven.yml

@@ -13,12 +13,13 @@ jobs:
         java: [ 8, 11, 17, 19 ]
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up JDK ${{ matrix.java }}
-      uses: actions/setup-java@v3
+      uses: actions/setup-java@v4
       with:
         java-version: ${{ matrix.java }}
         distribution: 'temurin'
+        cache: maven
     - name: Build with Maven
       run: mvn clean install -Dgpg.skip -Dmaven.javadoc.skip=true
     - name: Upload coverage reports to Codecov