Enable packages for Mariner 2.0

[NikolaMilosavljevic]

We need to enable proper support for Mariner 2.0 with specific DEPS package and new set of '-cm.2' packages.

While we can continue using 1.0 packages short-term, it is likely that DEPS package needs to be added soon. To simplify build and deployment experience, having a new set of packages for Mariner 2.0, with '-cm.2' in name, would be ideal.

Potential work:

• Enable Mariner 2.0 DEPS package #65441
• Add new set of RPM packages, with '-cm.2' in the name #65541
• Ensure all architectures are covered, including arm64: Enable build of Linux Arm64 RPM packages #64755

For complete end-to-end experience, here's the list of other repos that need to enable arm64 RPMs:

• dotnet/aspnetcore: Enable packages for Mariner 2.0 aspnetcore#40253
• dotnet/installer: Enable packages for Mariner 2.0 installer#13231

This is needed for 7.0 and 6.0 servicing.

[NikolaMilosavljevic]

[Triage] @NikolaMilosavljevic please open issues for aspnetcore and installer repos.

[NikolaMilosavljevic]

Completed.