make:smoke-tests should use annotations if phpunit < 10

[tacman]

PHPUnit 9.5 is ubiquitous -- it's installed by default on with symfony new --webapp. So a lot of projects still use it, and it's tied to simple-phpunit, which inject some Symfony services that I don't quite understand.

So bin/console make:smoke-tests --use-provider should detect that phpunit 9.5 is installed and generate an annotation, and the -a option should throw an error since attributes aren't available.

Alternatively, there could be a different option for annotations, e.g. --annotations

My instinct is to simply update to a later phpunit, but often that breaks too many test on legacy projects.

[tacman]

Actually, a more common practice is to simply generate both:

    #[DataProvider('provideRoutes')]
    /**
     * @dataProvider provideRoutes
     */

Since attributes are ignored if they don't exist.

[Pierstoval]

Attributes will be ignored if they don't exist, sure, but what happens for versions where both attribute & annotations exist? Will it throw an error? Will attributes take precedence?