Print out-of-process artifacts

[Youssef1313]

Fixes #7471

It's a little bit ugly because Out of process artifacts are printed at the very end, but it's better than not showing the info at all.

[Copilot]

Pull request overview

Adds terminal output for artifacts produced in non-TestHost (out-of-process) scenarios so they’re visible at the end of a test session.

Changes:

• Invoke artifact printing on session end when running outside the TestHost role.
• Add TerminalTestReporter.PrintOutOfProcessArtifacts() to render collected artifact paths to the terminal.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.

File	Description
src/Platform/Microsoft.Testing.Platform/OutputDevice/TerminalOutputDevice.cs	Calls artifact printing during session teardown for non-TestHost process roles.
src/Platform/Microsoft.Testing.Platform/OutputDevice/Terminal/TerminalTestReporter.cs	Adds a new method to print artifact links collected during execution.

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