Update dotnet.yml

Run action for all branches

Author: stidsborg

.github/workflows/dotnet.yml

@@ -4,7 +4,7 @@ name: CI
 on:
   # Triggers the workflow on push or pull request events but only for the master branch
   push:
-    branches: [ main ]
+    branches: [ "**" ]
   pull_request:
     branches: [ main ]