Merge f6b63ceb9e into cbb722410c

.github/workflows/publish-immutable-actions.yml

@@ -17,4 +17,4 @@ jobs:
         uses: actions/checkout@v4
       - name: Publish
         id: publish
-        uses: actions/publish-immutable-action@v0.0.4
+        uses: actions/publish-immutable-action@0.0.3

.github/workflows/update-test-ubuntu-git.yml

@@ -48,7 +48,7 @@ jobs:
 
       # Use `docker/build-push-action` to build (and optionally publish) the image. 
       - name: Build Docker Image (with optional Push)
-        uses: docker/build-push-action@v6.10.0
+        uses: docker/build-push-action@v6.5.0
         with:
           context: .
           file: images/test-ubuntu-git.Dockerfile

README.md

@@ -252,7 +252,7 @@ Please refer to the [release page](https://github.com/actions/checkout/releases/
 ```yaml
 - uses: actions/checkout@v4
   with:
-    ref: ${{ github.event.pull_request.head.sha }}
+    ref: ${{ github.event.pull_request.head.sha || github.ref }}
 ```
 
 ## Checkout pull request on closed event