Add workflow file to trigger paths for self-testing

Author: jeremymanning

.github/workflows/build-content.yml

@@ -8,13 +8,15 @@ on:
       - 'data/**'
       - 'templates/**'
       - 'scripts/**'
+      - '.github/workflows/build-content.yml'
   pull_request:
     branches:
       - main
     paths:
       - 'data/**'
       - 'templates/**'
       - 'scripts/**'
+      - '.github/workflows/build-content.yml'
   workflow_dispatch:  # Allow manual triggering
 
 jobs: