Merge pull request #36 from opwvhk/dependabot/github_actions/actions/…

…checkout-4

Bump actions/checkout from 3 to 4

.github/workflows/maven.yml

@@ -23,7 +23,7 @@ jobs:
     steps:
       # Note: this action must be first, as actions/setup-java needs it to set up the maven cache
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set up the Java JDK
         uses: actions/setup-java@v3