Update actions/checkout action to v5

Author: renovate[bot]

.github/workflows/maven.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3.3.0
+      - uses: actions/checkout@v5.0.1
       - name: Set up JDK 16
         uses: actions/setup-java@v3
         with: