[stable10] provisioning API tests for group with comma

[phil-davis]

Backport of commits from #31719 that:

1. add acceptance test scenarios for using the Provisioning API with groups that have a comma in the group name.
2. add unit test cases for groups that have a comma in the group name.

There are commits in that PR which modify the files:scan command to allow for group names containing a comma. Those changes are a backward-compatibility break, so are NOT backported.

[codecov]

Codecov Report

Merging #32242 into stable10 will not change coverage.
The diff coverage is n/a.

@@             Coverage Diff             @@
##             stable10   #32242   +/-   ##
===========================================
  Coverage       62.73%   62.73%           
  Complexity      18721    18721           
===========================================
  Files            1220     1220           
  Lines           73391    73391           
  Branches         1279     1279           
===========================================
  Hits            46044    46044           
  Misses          26968    26968           
  Partials          379      379

Flag	Coverage Δ	Complexity Δ
#javascript	53.08% <ø> (ø)	0 <ø> (ø)	⬇️
#phpunit	63.79% <ø> (ø)	18721 <ø> (ø)	⬇️

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