Regen all packages

[MichaelSimons]

Once the fix for dotnet/sdk#54450 and dotnet/sdk#54492 flow in, all packages should be regenerated. Some apicompat baselines introduced in #1671 will need to be updated - entries removed because of the apigen fix.

[ViktorHofer]

Fixed by #1694

[MichaelSimons]

The regen in #1694 appears to be affesting whitespace only. I was expecting dotnet/sdk#54450 and dotnet/sdk#54492 to impact the generated code and remove diffs reported in ApiCompat. Reopening to investigate.