Obtain access to `arm64` machines for smoketest/test related runs

[scbedd]

Right now, we have a limitation due to availability of agents. This is visible in Our build-matrix.json file.

As you can see, RunTests is set to false for ARM64 machines. This is due to a limitation in the currently available agents in the 1ES pools that are used in our builds.

In #717 we are also adding additional installation and verification of the built platform-specific packages. However, we have the limitation of being unable to install these arm64 native bytes as they are incompatible with the x64 agents that are available.

This issue covers making these agents available to the pools. In order of least to hardest difficulty to obtain:

• linux arm64
• windows arm64
• OSX arm64

[scbedd]

Moving this to milestone 2026-01. Recordings migration has priority.