Regenerated ext dir with Zephir 0.12.15

[ruudboon]

Hello!

• Type: code quality
• Link to issue: [BUG]: PHP7.4 build fails under FreeBSD #14646

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

Regenerated ext dir

[codecov]

Codecov Report

Merging #14664 into 4.0.x will not change coverage.
The diff coverage is 70.27%.

@@           Coverage Diff           @@
##            4.0.x   #14664   +/-   ##
=======================================
  Coverage   67.52%   67.52%           
=======================================
  Files         483      483           
  Lines      111379   111379           
=======================================
  Hits        75204    75204           
  Misses      36175    36175

[sergeyklay]

Thank you