Adapt failing subcell tests for Julia version 1.11

[bennibolm]

#1993 updates the Julia version to 1.11.
There are two failing tests with subcell limiting. This PR here adapt the tests as announced in #1993 (comment).

[github-actions]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.70%. Comparing base (d40a72e) to head (9b1c7bb).
Report is 1 commits behind head on hr/test_ci_julia_1_11.

Additional details and impacted files

@@                    Coverage Diff                    @@
##           hr/test_ci_julia_1_11    #2107      +/-   ##
=========================================================
+ Coverage                  78.92%   82.70%   +3.78%     
=========================================================
  Files                        470      470              
  Lines                      37542    37450      -92     
=========================================================
+ Hits                       29628    30971    +1343     
+ Misses                      7914     6479    -1435     

Flag	Coverage Δ
unittests	82.70% <ø> (+3.78%)	⬆️

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