[CI] Create github release automatically

Apparently it is the way to go

Change-Id: I3d443138e7d6ea4e9b190e8f120ae71e7e346cc8

.github/workflows/publish.yml

@@ -1,7 +1,5 @@
 name: PostSubmit
-on:
-  release:
-    types: [published]
+on: push
 jobs:
   publish:
     name: Publish
@@ -21,19 +19,19 @@ jobs:
         run: npm run dist
       - name: Get the version
         id: get_version
+        if: startsWith(github.ref, 'refs/tags/')
         run: echo ::set-output name=TAG::${GITHUB_REF#refs/tags/}
       - name: prepare deploy
+        if: startsWith(github.ref, 'refs/tags/')
         run: cd dist && zip -r marathon-ui-${TAG}.zip .
         env:
           TAG: ${{ steps.get_version.outputs.TAG }}
-      - name: Upload Release Asset
-        id: upload-release-asset 
-        uses: actions/upload-release-asset@v1
+      - name: Create release
+        id: upload-release-asset
+        uses: softprops/action-gh-release@v1
+        if: startsWith(github.ref, 'refs/tags/')
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
-          upload_url: ${{ steps.create_release.outputs.upload_url }} # This pulls from the CREATE RELEASE step above, referencing it's ID to get its outputs object, which include a `upload_url`. See this blog post for more info: https://jasonet.co/posts/new-features-of-github-actions/#passing-data-to-future-steps 
-          asset_path: dist/marathon-ui-${{ steps.get_version.outputs.TAG }}.zip
-          asset_name: marathon-ui-${{ steps.get_version.outputs.TAG }}.zip
-          asset_content_type: application/zip
+          files: dist/marathon-ui-${{ steps.get_version.outputs.TAG }}.zip