switch to pull_request trigger for unit test workflow

jjw24 · jjw24 · commit e10be953157f · 2026-07-11T00:06:43.000+10:00
diff --git a/.github/workflows/test-src-files.yml b/.github/workflows/test-src-files.yml
@@ -1,7 +1,7 @@
 name: Src unit tests
 
 on:
-  push:
+  pull_request:
   workflow_dispatch:
 
 jobs:
