ci: run ci workflow on push and merge proposal

Author: cwillisf

.github/workflows/ci.yml

@@ -3,13 +3,11 @@ name: CI
 on:
   pull_request:
   push:
-    branches:
-      - develop
   workflow_call:
   workflow_dispatch:
 
 concurrency:
-  group: "${{ github.workflow }} @ ${{ github.event.pull_request.head.label || github.head_ref || github.ref }}"
+  group: "${{ github.workflow }} @ ${{ github.head_ref || github.sha }}"
   cancel-in-progress: true
 
 jobs: