added github workflow file for automatic nuget packages pushing

.github/workflows/publish-nuget.yml

@@ -0,0 +1,35 @@
+name: Build and Publish NuGet Package
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+  build-and-publish:
+    runs-on: ubuntu-latest
+    
+    permissions:
+      packages: write
+      contents: read
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: '10.0.x'
+
+      - name: Restore dependencies
+        run: dotnet restore
+
+      - name: Build project
+        run: dotnet build --configuration Release --no-restore
+
+      - name: Push to GitHub Packages
+        run: dotnet nuget push ./bin/Release/*.nupkg --source https://nuget.pkg.github.com/${{ github.repository_owner }}/index.json --api-key ${{ secrets.GITHUB_TOKEN }} --skip-duplicate
+
+      - name: Push to NuGet.org
+        run: dotnet nuget push ./bin/Release/*.nupkg --source https://api.nuget.org/v3/index.json --api-key ${{ secrets.NUGET_API_KEY }} --skip-duplicate