Make sure it triggers on main as well

Add concurrency clause as well so lots of runs don't build up

Author: jonathanrainer

.github/workflows/run-smokes-on-pr.yml

@@ -1,6 +1,13 @@
 on:
   pull_request:
+  push:
+    branches:
+      - main
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+      
 name: "Run End-To-End Tests"
 jobs:
   calculate_correct_version_ranges: