Update actions/checkout

Author: carlosala

.github/workflows/publish.yml

@@ -2,7 +2,7 @@ name: Publish
 
 on:
   push:
-    branches: [ main ]
+    branches: [main]
   workflow_dispatch: {}
 
 concurrency:
@@ -13,7 +13,7 @@ jobs:
   publish:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           ref: main
           fetch-depth: 0