Fix Azure CLI run command interaction with the terminal

[jeremyfowers]

The current implementation of Azure CLI's run command kind of breaks the terminal in at least 2 ways:

• Printouts to the terminal are garbled
• Terminal is frozen / not usable after the run command finishes

This behavior manifested after I started using timeout --foreground and ssh -tt so it is probably due to one of those.

Workaround:

1. Dump run output into a log file, e.g., python control.py run stop --cluster --name exporttest --size 16 --hardware cpu-big-ram -f /home/jfowers/mlagility/models/*/*.py -a="--export-only --labels=test_group::mlagility" > log.txt
2. Close the current terminal after the run command finishes

Setting p2 since there are reasonable workarounds