Add push trigger for testing on current branch

Enable workflow to run on push to copilot/add-github-actions-workflow
branch for testing before merge.

Co-authored-by: joaomoreno <22350+joaomoreno@users.noreply.github.com>

Author: Copilot

.github/workflows/oss-build-fast.yml

@@ -9,6 +9,9 @@ name: Code OSS Fast Build
 
 on:
   workflow_dispatch:
+  push:
+    branches:
+      - copilot/add-github-actions-workflow
 
 permissions: {}