chore(deps): update actions/checkout action to v4

Author: renovate[bot]

.github/workflows/ci.yaml

@@ -11,7 +11,7 @@ jobs:
 
     steps:
       - name: Check out GitHub repo
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Set up JDK 17
         uses: actions/setup-java@v3
         with: