Update ci.yml (#1949)

.github/workflows/ci.yml

@@ -311,16 +311,28 @@ jobs:
       with:
         name: appinspector
         path: artifacts/appinspector
+  check-nuget-environment:
+    permissions:
+      actions: read
+      contents: read
+      deployments: read
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check if 'nuget' environment exists and has protection rules
+        uses: dpvreony/ensure-environment-protected@main
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          environment_name: 'nuget'
   release:
     if: ${{ always() && format('refs/heads/{0}', github.event.repository.default_branch) == github.ref }}
     permissions:
       contents: write
       pages: write
       id-token: write
     runs-on: ubuntu-latest
+    needs: [build, check-nuget-environment]
     environment:
       name: nuget
-    needs: build
     env:
       DOTNET_CLI_TELEMETRY_OPTOUT: 1
       DOTNET_SKIP_FIRST_TIME_EXPERIENCE: 1