Do not show error that plugins have been disabled when they are already disabled

[kubawerlos]

Current behaviour is to, no matter --no-plugins is used or not, to show the error, this is from main branch:

$ ./bin/compile
$ sudo php composer.phar -n --version
Composer plugins have been disabled for safety in this non-interactive session. Set COMPOSER_ALLOW_SUPERUSER=1 if you want to allow plugins to run as root/super user.
Do not run Composer as root/super user! See https://getcomposer.org/root for details
Composer version 2.7-dev+4e5be9ee7d924d8efc58d676439b0c7bd18a9ce4 (2.7-dev) 2024-01-12 13:20:59
$ sudo php composer.phar -n --version --no-plugins
Composer plugins have been disabled for safety in this non-interactive session. Set COMPOSER_ALLOW_SUPERUSER=1 if you want to allow plugins to run as root/super user.
Do not run Composer as root/super user! See https://getcomposer.org/root for details
Composer version 2.7-dev+4e5be9ee7d924d8efc58d676439b0c7bd18a9ce4 (2.7-dev) 2024-01-12 13:20:59

After this change only when --no-plugins is NOT used, to show the error:

$ ./bin/compile
$ sudo php composer.phar -n --version
Composer plugins have been disabled for safety in this non-interactive session. Set COMPOSER_ALLOW_SUPERUSER=1 if you want to allow plugins to run as root/super user.
Do not run Composer as root/super user! See https://getcomposer.org/root for details
Composer version 2.7-dev+4e5be9ee7d924d8efc58d676439b0c7bd18a9ce4 (2.7-dev) 2024-01-12 13:20:59
$ sudo php composer.phar -n --version --no-plugins
Do not run Composer as root/super user! See https://getcomposer.org/root for details
Composer version 2.7-dev+4e5be9ee7d924d8efc58d676439b0c7bd18a9ce4 (2.7-dev) 2024-01-12 13:20:59

[Seldaek]

Makes sense thanks