[MAINTENANCE] Adjust date displaying in calendar

[beatrycze-volk]

Replace with solution from #1392 after TYPO3 11.x is dropped

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 0.00%. Comparing base (07ecc9c) to head (7f3c947).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@     Coverage Diff      @@
##   main   #1704   +/-   ##
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