Migrate repo source-build jobs off of Mariner 2.0

[MichaelSimons]

The source-build job in arcade is still using mariner (https://github.com/dotnet/arcade/blob/8a7dec735d2a08a14854584b9c4a8891c6e97218/eng/common/core-templates/job/source-build.yml#L66). This should be upgraded to Azure Linux 3.0 images.

[akoeplinger]

we'll need to backport the change to all branches to avoid pipelines getting flagged