Specify required fields on BuildTool in bootstrap
Specify required fields on BuildTool in bootstrap

These fields were added in dotnet/arcade#2722 but we weren't forced to react
because we weren't correctly indicating that we were in a CI scenario
when building using the build-with-bootstrap script.

AndyGerlicher/msbuild,rainersigwald/msbuild,rainersigwald/msbuild,sean-gilliam/msbuild,mono/msbuild,cdmihai/msbuild,sean-gilliam/msbuild,chipitsine/msbuild,cdmihai/msbuild,AndyGerlicher/msbuild,sean-gilliam/msbuild,AndyGerlicher/msbuild,mono/msbuild,rainersigwald/msbuild,cdmihai/msbuild,rainersigwald/msbuild,sean-gilliam/msbuild,mono/msbuild,chipitsine/msbuild,cdmihai/msbuild,mono/msbuild,chipitsine/msbuild,AndyGerlicher/msbuild,chipitsine/msbuild