T2893 logger date format

[niden]

Hello!

• Type: enhancement
• Link to issue: Logger\Formatter\Line::setDateFormat does not support microseconds #2893

In raising this pull request, I confirm the following:

• I have read and understood the Contributing Guidelines
• I have checked that another pull request for this purpose does not exist
• I wrote some tests for this PR
• I have updated the relevant CHANGELOG
• I have created a PR for the documentation about this change

Changed the logic when logging times for Phalcon\Logger to use DateTimeImmutable so as to handle microseconds if necessary.

Thanks

[codecov]

Codecov Report

Merging #14648 into 4.0.x will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##            4.0.x   #14648   +/-   ##
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  Coverage   67.46%   67.46%           
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  Files         483      483           
  Lines      111370   111370           
=======================================
  Hits        75139    75139           
  Misses      36231    36231