Update actions/checkout action to v4

Author: renovate-bot

.github/workflows/jscrambler-code-integrity.yml

@@ -27,7 +27,7 @@ jobs:
     permissions:
       contents: read
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-node@v3
         with:
           node-version: 18