[apple] Run `xharness-runner.apple.sh` without sudo

[matouskozak]

Currently, the xharness-runner.apple.sh is run on Helix with elevated privileges (sudo).

This is causing devicectl to complain: Running devicectl with elevated privileges via sudo is unlikely to work properly. Please do not do this.

Investigate if we really need to run the xHarness apple runner with sudo.