fix: Retry Linux flake

[bitsandfoxes]

This is similar to #2527
If running the game hangs (i.e. on Linux during startup) the state has to be reset and the tests rerun.

This wraps the existing logic in a max-try = 3 and resets the AppDataDir.

#skip-changelog

[github-actions]

Semver Impact of This PR

🟢 Patch (bug fixes)

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Cursor Bugbot has reviewed your changes and found 1 potential issue.

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Hung process not killed when Player.log missing during retry

Medium Severity

When the game hangs during startup (the exact scenario this PR targets), the AppDataDir has been cleaned at the start of the attempt and the hung process never recreated Player.log. Get-Content on the missing file throws a terminating error (due to $ErrorActionPreference = "Stop"), which propagates out of RunTest before reaching Stop-Process -Force. The finally block in RunTest only writes ::endgroup:: and doesn't clean up the process. The retry loop catches the exception and starts a new attempt, but the old hung process is still running. Before this PR there was no retry so the script would just exit; now zombie processes accumulate across retries and could interfere with subsequent attempts.

Additional Locations (1)

• test/Scripts.Integration.Test/run-smoke-test.ps1#L98-L117