Add release spec for github action (#84)

Author: adrianhall

.github/workflows/build-library.yml

@@ -192,7 +192,7 @@ jobs:
           --azure-key-vault-client-secret "${{ secrets.SIGN_CLIENT_SECRET }}"
           --azure-key-vault-tenant-id ${{ secrets.SIGN_TENANT_ID }}
           --azure-key-vault-certificate "${{ secrets.SIGN_CERTIFICATE }}"
-          --verbosity Information        
+          --verbosity Information
 
       - name: Upload signed NuGet packages
         uses: actions/upload-artifact@v4

.github/workflows/build-template.yml

@@ -146,3 +146,29 @@ jobs:
           --api-key dummy 
           --source MainLatest 
           --skip-duplicate
+
+  release:
+    if: ${{ startsWith(github.ref, 'refs/tags/') }}
+    needs: [ sign ]
+    environment: nuget-release-gate
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Setup .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: ${{ env.DOTNET_VERSION }}
+  
+      - name: Download unsigned NuGet packages
+        uses: actions/download-artifact@v4
+        with:
+          name: nuget-signed
+          path: ${{ github.workspace }}/packages
+
+      - name: Push signed packages to NuGet.org
+        run: >
+          dotnet nuget push
+          ${{ github.workspace }}/packages/**/*.nupkg
+          --source https://api.nuget.org/v3/index.json
+          --api-key ${{ secrets.NUGET_PACKAGE_PUSH_TOKEN }}
+          --skip-duplicate