Upgrade GitHub Actions for Node 24 compatibility

Author: salmanmkc

.github/workflows/update.yml

@@ -11,7 +11,7 @@ jobs:
       contents: write
     steps:
       # Update checkout version and add fetch-depth
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0