Run runtests on pull requests to main

GerhardHippmann · GerhardHippmann · commit 03b2627a555a · 2022-02-09T12:14:42.000+01:00
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
@@ -3,7 +3,7 @@ name: Run tests
 env:
   JULIA_NUM_THREADS: 4
 on:
-  push:
+  pull_request:
     branches:
       - main
 jobs:
