Add PCOV extension to images

Both phpdbg and pcov

drupalci/php-8.3-ubuntu-apache   dev                 26f9725496f5   26 minutes ago   768MB
drupalci/php-8.3-ubuntu-apache   production          1b69a83805a9   10 days ago      728MB

Tested phpgdb and it was super slow
Moroever its size if extra 56MB to download each time

4.2M	/usr/local/lib/php/extensions/no-debug-non-zts-20230831/opcache.so.debug
176K	/usr/local/lib/php/extensions/no-debug-non-zts-20230831/yaml.so.debug
68K	/usr/local/lib/php/extensions/no-debug-non-zts-20230831/pcov.so.debug
336K	/usr/local/lib/php/extensions/no-debug-non-zts-20230831/apcu.so.debug
52K	/usr/local/lib/php/extensions/no-debug-non-zts-20230831/gettext.so.debug
35M	/usr/local/bin/php.debug

32K	/usr/local/lib/php/extensions/no-debug-non-zts-20230831/pcov.so
...
-rwxr-xr-x 1 root root 58021528 Apr 21 15:59 phpdbg*

so I removed and added xdebug instead

In news that it not surprising pcov is way faster then xdebug for code coverage.

decided to skip adding binutils and changed docker-php-ext-enable to use PHP executable way to determine if extension is zend or not

After testing gonna push updated PHP 8.3 images

Added change record https://www.drupal.org/node/3442363 →

and gonna cherry-pick to production as tests ran

comparison with xdebug https://git.drupalcode.org/project/distributions_recipes/-/merge_request...
other runs contain attepts with phpdbg

I bet it makes sense to backport to 8.2 as well but let's see it will go for 8.3

This is fantastic - thanks @andypost

Automatically closed - issue fixed for 2 weeks with no activity.