Fix Build of Setup on Agent

[danielsiegl]

We can now build the source code after each checkin!
Because of the old setup technology building the setup is again acting up - I will investigate.

[danielsiegl]

This suggests if no .suo file is checked in you need a newer version from Visual Studio 19 on the agent to build it none interactive.

https://developercommunity.visualstudio.com/t/building-vdproj-projects-from-command-line-is-brok/1048764
https://developercommunity.visualstudio.com/t/visual-studio-2019-upgrade-hangs/1043992

[danielsiegl]

Apparently it is related to an expired trial license on VS 2019 Pro - so I converted it to VS 2019 Community Edition

[danielsiegl]

Installing VS 2019 Community Edition on the agent fixed it: https://github.com/LieberLieber/mtip-sparx/actions/runs/4198543315

The changes in the build file are part of 64 Bit installer pull request