ci: temporarily re-add branch trigger to validate consolidated config

Author: jcelerier

.github/workflows/builds.yaml

@@ -3,7 +3,7 @@ name: Build
 on:
   pull_request:
   push:
-    branches: [main, master]
+    branches: [main, master, migrate-avnd-addon]
     tags: ['v*']
 
 concurrency:

.github/workflows/portability.yml

@@ -3,7 +3,7 @@ name: Portability
 on:
   pull_request:
   push:
-    branches: [main, master]
+    branches: [main, master, migrate-avnd-addon]
 
 concurrency:
   group: ${{ github.workflow }}-portability-${{ github.event.pull_request.number || github.ref }}