Improvement: Update timeouts in testsuite

[Davknapp]

Closes #2087

After improving the runtime of our testsuite we have not updated the timeouts.
This PR sets appropiate timeouts for every workflow.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 77.05%. Comparing base (9f807b1) to head (fdc5dc2).
⚠️ Report is 6 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2086   +/-   ##
=======================================
  Coverage   77.05%   77.05%           
=======================================
  Files         112      112           
  Lines       18959    18959           
=======================================
  Hits        14608    14608           
  Misses       4351     4351           

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[sandro-elsweijer]

The normal runtime seems to be less than 10 minutes, so 20 minutes would still be two times as long

Suggested change

	timeout-minutes: 30
	timeout-minutes: 20

[sandro-elsweijer]

The normal runtime seems to be less than 10 minutes, but i think if a runner has a hiccup it could maybe need more than 5 minutes longer without us being at fault

Suggested change

	timeout-minutes: 15
	timeout-minutes: 20

[sandro-elsweijer]

same here

Suggested change

	timeout-minutes: 15
	timeout-minutes: 20