Fixes deprecated warnings in PHP 8.4

[kukulich]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 88.88889% with 4 lines in your changes missing coverage. Please review.

Project coverage is 53.37%. Comparing base (7cee2b3) to head (d900788).
Report is 4 commits behind head on main.

Files with missing lines	Patch %	Lines
src/Phing/Exception/ExitStatusException.php	0.00%	1 Missing ⚠️
src/Phing/Listener/XmlLogger.php	0.00%	1 Missing ⚠️
src/Phing/Phing.php	0.00%	1 Missing ⚠️
src/Phing/Task/System/EchoProperties.php	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #1877   +/-   ##
=========================================
  Coverage     53.37%   53.37%           
  Complexity     9818     9818           
=========================================
  Files           496      496           
  Lines         24738    24738           
=========================================
  Hits          13203    13203           
  Misses        11535    11535           

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