Get rid of deprecation warnings for trim() [PHP8.3]

[g41797]

Q	A
Is bugfix?	✔️
New feature?	❌
Breaks BC?	❌
Fixed issues	Issue:Fix tests for 8.3, PR:Fix warnings

[what-the-diff]

PR Summary

• Improved Code Robustness in UrlManager.php
  Made an important adjustment to ensure our software handles unexpected situations more gracefully. The change specifically targets how we extract specific parameters from a URL route. Simply put, we've made the system safer, avoiding potential crashes or bugs that could have come up when a parameter was missing. The software is now more robust and resilient to different scenarios.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (dffb4c7) 48.02% compared to head (567e010) 48.02%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master   #20090   +/-   ##
=======================================
  Coverage   48.02%   48.02%           
=======================================
  Files         445      445           
  Lines       43890    43890           
=======================================
  Hits        21078    21078           
  Misses      22812    22812           

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