fix(test): fix 'npm test' under Node.js 22

[ChALkeR]

Dir is not accepted anymore, globs patterns are (not not compatible to 20)
Which means full file paths are ok

Not using '**/*' or '*' as it's not parsed by Node.js 20, not using **/* as not all shells expand it, so *

Assuming all tests are on single level

Refs: https://nodejs.org/api/test.html#running-tests-from-the-command-line

[marco-ippolito]

it's fine to use node 22 in the CI if we can support multi level, we can even add => node 22 as engine, it really depends if we are going to backport enable strip-types to v20, which I doubt since it will enter maintainance in october

[marco-ippolito]

superseded by #21