Add tag-based trigger to NuGet publish workflow

Author: Rafal Maciag

.github/workflows/dotnet-publish-nuget.yml

@@ -3,6 +3,9 @@ name: Publish Dotnet Package (NuGet)
 on:
   release:
     types: [created]
+  push:
+    tags:
+      - 'v*'
 
 jobs:
   deploy: