Merge pull request #23 from arduino/dependabot/github_actions/compile…

…-sketches-demo/actions/checkout-4

Bump actions/checkout from 3 to 4

.github/workflows/compile-sketch.yml

@@ -12,7 +12,7 @@ jobs:
     steps:
       # This step makes the contents of the repository available to the workflow
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       # For more information: https://github.com/arduino/compile-sketches#readme
       - name: Compile sketch