fix: php8.3 should allow environment variables to php-fpm

[rfay]

The Issue

@rpkoller and I were studying the failure of Drupal 10 to install and we discovered a regresssion - $IS_DDEV_PROJECT was not available to settings.php, meaning that it didn't behave correctly and load settings.ddev.php.

The problem was that the PHP8.3 fpm/pool.d/www.conf didn't have the correct setting for clear_env, which should be "no" for DDEV

How This PR Solves The Issue

• Set it correctly
• Also noted another change from php8.2 that was not intentional, daemonize = no and catch_workers_output=yes
• Added test to make sure we get environment variables

Manual Testing Instructions

Do a Drupal10 installation with php8.3, it should work.

Automated Testing Overview

Coverage of this regression was added in TestPHPConfig

Related Issue Link(s)

Release/Deployment Notes

[github-actions]

Download the artifacts for this pull request:

• all-ddev-executables.zip
• ddev-linux-amd64.zip
• ddev-linux-arm64.zip
• ddev-macos-amd64.zip
• ddev-macos-arm64.zip
• ddev-windows-amd64-installer.zip

See Testing a PR

[rpkoller]

I've tested with the same ansible setup i've previously noticed the issue with. with the downloaded artifact i was able to install a site and the settings.ddev.php was found and the database credentials inside the settings.ddev.php available to the drupal install on php8.3.