build.yaml: Use mapping syntax (for upcoming extension)

hartwork · hartwork · commit 3772120fbc1b · 2025-04-26T20:21:06.000+02:00
diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
@@ -17,8 +17,8 @@
 name: Build (Linux, Ubuntu)
 
 on:
-- pull_request
-- push
+  pull_request:
+  push:
 
 jobs:
   build:
