feat: Add push option to build-dev-container workflow

This commit adds the `push` option to the `build-dev-container.yaml` workflow. Now, the container image will always be pushed to the specified registry after building.

Author: npv2k1

.github/workflows/build-dev-container.yaml

@@ -25,4 +25,4 @@ jobs:
         with:
           subFolder: ./templates/react-native
           imageName: ghcr.io/pnstack/codespace
-          runCmd: make ci-build
+          push: always