Remove branches from GitHub Actions workflow

The GitHub Actions workflow is now triggered only for the 'next' branch, and no longer runs for 'qa' and 'main' branches. This change simplifies the workflow's trigger conditions, focusing testing efforts on 'next'.

Signed-off-by: Jose Borreguero <[email protected]>

.github/workflows/testing.yml

@@ -4,7 +4,7 @@ on:
   workflow_dispatch:
   pull_request:
   push:
-    branches: [next, qa, main]
+    branches: [next]
     tags: ['v*']
 
 jobs: