Add release step

Author: manuelroemer

.github/workflows/dotnet.yml

@@ -5,11 +5,12 @@ on:
     branches: [ "main" ]
   pull_request:
     branches: [ "main" ]
+  release:
+    types: [ "created" ]
 
 jobs:
   build:
     runs-on: ubuntu-latest
-
     steps:
     - uses: actions/checkout@v4
     - name: Setup .NET
@@ -22,3 +23,22 @@ jobs:
       run: dotnet build --no-restore
     - name: Test
       run: dotnet test --no-restore --no-build --verbosity normal
+
+  release:
+    needs: build
+    runs-on: ubuntu-latest
+    if: github.event_name == 'release' && github.event.action == 'created'
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: 8.x
+      - name: Restore dependencies
+        run: dotnet restore
+      - name: Pack NuGet package
+        run: dotnet pack --no-restore -c Release -o ./artifacts
+      - name: Publish to NuGet
+        env:
+          NUGET_API_KEY: ${{ secrets.NUGET_API_KEY }}
+        run: dotnet nuget push ./artifacts/*.nupkg --source https://api.nuget.org/v3/index.json --api-key $NUGET_API_KEY