Merge pull request #40 from AlexProgrammerDE/renovate/actions-checkout-3.x

Update actions/checkout action to v3

Author: AlexProgrammerDE

.github/workflows/maven.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Set up JDK 1.8
         uses: actions/setup-java@v3
         with: