Allow manual CI run

Author: mgravell

.github/workflows/CI.yml

@@ -7,6 +7,7 @@ on:
     paths:
       - '**'
       - '!/docs/*' # Don't run workflow when files are only in the /docs directory
+  workflow_dispatch:
 
 jobs:
   main:
@@ -148,4 +149,4 @@ jobs:
       run: dotnet pack Build.csproj --no-build -c Release /p:PackageOutputPath=${env:GITHUB_WORKSPACE}\.nupkgs /p:CI=true
     - name: Upload to MyGet
       if: github.event_name == 'push' && github.ref == 'refs/heads/main'
-      run: dotnet nuget push ${env:GITHUB_WORKSPACE}\.nupkgs\*.nupkg -s https://www.myget.org/F/stackoverflow/api/v2/package -k ${{ secrets.MYGET_API_KEY }}
+      run: dotnet nuget push ${env:GITHUB_WORKSPACE}\.nupkgs\*.nupkg -s https://www.myget.org/F/stackoverflow/api/v2/package -k ${{ secrets.MYGET_API_KEY }}