Trigger release on [published] (#6)

Author: damir-usmanov

.github/workflows/release.yaml

@@ -1,9 +1,8 @@
 name: Release NuGet Package
 
 on:
-  push:
-    tags:
-      - 'v*'  # Triggers on tags like v1.2.3
+  release:
+    types: [published]
 
 jobs:
   build-and-publish:
@@ -23,7 +22,7 @@ jobs:
 
       - name: Extract version from tag
         id: get_version
-        run: echo "PACKAGE_VERSION=${GITHUB_REF#refs/tags/v}" >> $GITHUB_ENV
+        run: echo "PACKAGE_VERSION=${GITHUB_REF/refs\/tags\//}" >> $GITHUB_ENV
       - name: Build
         run: dotnet build --configuration Release --no-restore