Disable TestCommandArgumentExpansion cmd
What does this MR do?
Disables the TestCommandArgumentExpansion/cmd test is either flakey or fails very regularly.
Why was this MR needed?
Blocking unrelated changes in the pipeline failure. We recently started checking test results for MRs: !3846 (merged) and this test has been failing for a while.
What's the best way to test this MR?
Run the TestCommandArgumentExpansion and it should skip /cmd.