on pull request and push to main

.github/workflows/build-and-test.yml

@@ -1,19 +1,19 @@
 name: Build and test
 
 on:
-  push
+  pull_request:
+  push:
+    branches: [main]
 
 jobs:
-  cancel-previous:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: styfle/[email protected]
-        with:
-          access_token: ${{ github.token }}
   build-and-test:
     name: pytest
     runs-on: ubuntu-latest
 
+    concurrency:
+      group: platformics-build-and-test-${{ github.ref }}
+      cancel-in-progress: true
+
     steps:
     - name: checkout code
       uses: actions/checkout@v4