Add missing dollar sign for variable

Author: sandermvanvliet

.github/workflows/release.yml

@@ -48,5 +48,5 @@ jobs:
       with:
         upload_url: ${{ steps.create_release.outputs.upload_url }} # This pulls from the CREATE RELEASE step above, referencing it's ID to get its outputs object, which include a `upload_url`. See this blog post for more info: https://jasonet.co/posts/new-features-of-github-actions/#passing-data-to-future-steps 
         asset_path: .\packaging\ProtobufDecoder.Installer\bin\Release\ProtobufDecoder.msi
-        asset_name: ProtobufDecoder_v{{ steps.get_version.outputs.VERSION }}.msi
+        asset_name: ProtobufDecoder_v${{ steps.get_version.outputs.VERSION }}.msi
         asset_content_type: application/x-msi