Update dotnet_nuget.yml

Author: Petteri Kautonen

.github/workflows/dotnet_nuget.yml

@@ -43,5 +43,5 @@ jobs:
     - name: NuGet push
       if: ${{ github.event_name != 'pull_request' }}
       run: |
-        find -name *Scintilla.NET.Gtk*.nupkg -exec nuget push $1 $NUGET_APIKEY -Source $NUGETAPI -SkipDuplicate {} +
-        find -name *Scintilla.NET.Gtk*.nupkg -exec nuget push $1 $GH_PACKAGES_APIKEY -Source $PACKAGESAPI -SkipDuplicate {} +
+        find -name *Scintilla.NET.Gtk*.nupkg -exec nuget push "$1" $NUGET_APIKEY -Source $NUGETAPI -SkipDuplicate {} \;
+        find -name *Scintilla.NET.Gtk*.nupkg -exec nuget push "$1" $GH_PACKAGES_APIKEY -Source $PACKAGESAPI -SkipDuplicate {} \;