Update actions/setup-java action to v6

Author: renovate[bot]

.github/workflows/maven.yml

@@ -15,7 +15,7 @@ jobs:
         uses: actions/checkout@v3
 
       - name: Set up JDK
-        uses: actions/setup-java@v3
+        uses: actions/setup-java@v6
         with:
           java-version: '17'
           distribution: 'temurin'