Fix: Remove additional copies.

[steveworley]

The PHP8.3 base images move Drush and it is no longer available via /usr/local/bin. Drush is installed by composer and is available in the vendor directory which is copied above this continues to resolve correctly after the PHP upgrade.

# docker compose run test drush --version

configured lagoon-php.ini
Drush Launcher Version: 0.10.2
Drush Commandline Tool 12.5.2.0

# docker compose run test which drush

configured lagoon-php.ini
/usr/local/bin/drush