Update GitHub Actions

* Use v4
* Use setup-java's cache instead of actions/cache

.github/workflows/maven.yaml

diff --git a/.github/workflows/maven.yaml b/.github/workflows/maven.yaml
index dc8ff37..9c96614 100644
--- a/.github/workflows/maven.yaml
+++ b/.github/workflows/maven.yaml
@@ -34,33 +34,27 @@
     timeout-minutes: 60
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
-    - name: Set up JDK 11
-      uses: actions/setup-java@v1
+    - uses: actions/checkout@v4
+    - name: Set up JDK 17
+      uses: actions/setup-java@v4
       with:
-        java-version: 11
-    - name: Cache local maven repository
-      uses: actions/cache@v2
-      with:
-        path: |
-          ~/.m2/repository/
-          !~/.m2/repository/org/apache/fluo
-        key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
-        restore-keys: ${{ runner.os }}-m2
+        distribution: adopt
+        java-version: 17
+        cache: 'maven'
     - name: Build with Maven
       run: mvn -B -V -e -ntp "-Dstyle.color=always" verify javadoc:jar
       env:
         MAVEN_OPTS: -Djansi.force=true
     - name: Upload unit test results
       if: ${{ failure() }}
-      uses: actions/upload-artifact@v2
+      uses: actions/upload-artifact@v4
       with:
         name: surefire-reports
         path: ./**/target/surefire-reports/
         if-no-files-found: ignore
     - name: Upload integration test results
       if: ${{ failure() }}
-      uses: actions/upload-artifact@v2
+      uses: actions/upload-artifact@v4
       with:
         name: failsafe-reports
         path: ./**/target/failsafe-reports/