Update artifact name in build workflow, remove .zip ext

The artifact upload step in the build workflow now uses SignalR.OpenApi.${{ env.VERSION }} as the artifact name instead of appending a .zip extension. The upload path continues to target all .nupkg files in the ./artifacts directory.

Author: icnocop

.github/workflows/build.yml

@@ -59,7 +59,7 @@ jobs:
     - name: Upload artifacts
       uses: actions/upload-artifact@v4
       with:
-        name: SignalR.OpenApi.${{ env.VERSION }}.zip
+        name: SignalR.OpenApi.${{ env.VERSION }}
         path: ./artifacts/*.nupkg
 
     - name: Publish to NuGet