Workflow to run checks is now triggered by PRs

Author: emann

.github/workflows/checks.yml

@@ -1,6 +1,13 @@
 name: Run Checks
 
-on: [push]
+on:
+  push:
+    branches: ["**"]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [main]
+  schedule:
+    - cron: '0 23 * * 2'
 
 jobs:
   test: