Fixed Github Action Upload NuGetForUnity.Cli NuGet package

Author: JoC0de

.github/workflows/main.yml

@@ -146,7 +146,7 @@ jobs:
       - name: publish the NuGetForUnity.Cli NuGet package
         if: github.ref_type == 'tag'
         run: >-
-          dotnet nuget push .\NuGetForUnity.Cli.${{ needs.determineVersionNumber.outputs.version }}.nupkg --api-key ${{secrets.NUGET_API_TOKEN}}
+          dotnet nuget push ./NuGetForUnity.Cli.${{ needs.determineVersionNumber.outputs.version }}.nupkg --api-key ${{secrets.NUGET_API_TOKEN}}
           --source https://api.nuget.org/v3/index.json
 
       - name: Upload NuGetForUnity.Cli NuGet package