[stable29] test: Use utils function from server and wait for requests

[backportbot]

Backport of #1893

Warning, This backport's changes differ from the original and might be incomplete ⚠️

Todo

• Review and resolve any conflicts
• Amend HEAD commit to remove the line stating to skip CI

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Learn more about backports at https://docs.nextcloud.com/server/stable/go.php?to=developer-backports.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 41.96%. Comparing base (2f3dc7f) to head (deefdbf).
Report is 13 commits behind head on stable29.

Additional details and impacted files

@@            Coverage Diff            @@
##           stable29    #1923   +/-   ##
=========================================
  Coverage     41.96%   41.96%           
=========================================
  Files            43       43           
  Lines          3839     3839           
  Branches        110      110           
=========================================
  Hits           1611     1611           
  Misses         2202     2202           
  Partials         26       26           

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[cypress]

Activity    Run #2420

Run Properties:   Passed #2420  •  e3fe0cf5de: [stable29] test: Use utils function from server and wait for requests

Project	Activity
Branch Review	backport/1893/stable29
Run status	Passed #2420
Run duration	02m 56s
Commit	e3fe0cf5de: [stable29] test: Use utils function from server and wait for requests
Committer	backportbot[bot]
View all properties for this run ↗︎

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Test results
Failures	0
Flaky	4
Pending	0
Skipped	0
Passing	10
View all changes introduced in this branch ↗︎