Allow usage of namespace selection using wildcards

[naxvog]

As discussed in pestphp/pest#1072 and pestphp/pest#728 this PR allows the usage of wildcards in namespace selection.

This is useful if a module/domain architecture needs to be tested.

Tried to include globstar too but unfortunately symfony finder, as far as I know, does not support it.

[jambonfarci]

Is this PR still active ?
There are no assignees.

[naxvog]

I will fix the merge conflicts in the coming days.
However, to be frank, after 7 months without any sign from the maintainers I am pessimistic about this finding its way into pest.

[clementbirkle]

@nunomaduro this PR seems useful for several users. Could you approve it please? Thank you in advance 🙏

[nunomaduro]

had to revert, because this test was failing:

arch()->expect('*')->toUseStrictTypes();

[naxvog]

had to revert, because this test was failing:

arch()->expect('*')->toUseStrictTypes();

Sadly I could not find the test in question but added the one you mentioned anyway and the code passed the test.
However, I got the following failing test: Arch:base with the following message:

Expecting 'Pest\Arch' to only use 'dd, dump, expect, test, Pest, PHPUnit\Architecture, Symfony\Component\Finder\Finder, PhpParser\Node, Whoops\Exception\Frame'. However, it also uses 'PhpParser\Node'.

That being said I corrected the Stan issue detected after the merge of #12 and opened #16 to reflect the change.