Temporarily disable cgroups=disabled test

[cevich]

What this PR does / why we need it:

Temporarily disable test so deeper debugging can be performed (i.e. via #12120)

Issue ref: #11191

How to verify it

Very difficult / impossible since it's a fairly rare race. Test will be re-enabled once actual problem is discovered.

Which issue(s) this PR fixes:

None

Special notes for your reviewer:

None

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[edsantiago]

Um, if you disable the test, then @giuseppe's debugging check #12120 will never trigger?

[cevich]

Um, if you disable the test, then @giuseppe's debugging check #12120 will never trigger?

Correct, he will need to revert this commit in his PR. My intention with this PR is to decouple the (eventual) fix from merge of #11795 since they're of different purpose - no need to rush a fix just to get new VM images in (or the other way around).

[cevich]

Clarification: I'm okay if we decide to just close this PR. I can simply smash the re-run button in #11795 should this error come up again.

[TomSweeneyRedHat]

I'd vote to see if @giuseppe 's PR catches the little booger and I'd put this one on hold for now.

[giuseppe]

if you don't mind let's give my PR a try and see if we catch again the same failure or if it is a different error

[cevich]

Nope, I don't mind at all. This is just a decoupling option in case we need it - I've been working on that damn F35b PR for a month now, so I'm eager to be done with it 😖 But if you can find/fix faster, that's even better.

[cevich]

Forgot this is a somewhat-rare flake, closing this so we can wait and see if this pops up again.