Trigger ci.yml on release branches created by nbgv prepare-release

Author: halter73

.github/workflows/ci.yml

@@ -2,9 +2,9 @@ name: Build, Test and Pack
 
 on:
   push:
-    branches: ["main"]
+    branches: ["main", "v*.**"]
   pull_request:
-    branches: ["main"]
+    branches: ["main", "v*.**"]
 
 jobs:
   build: