RFE: support for `charset_normalizer` >= 3

[kloczek]

Any plans to provuide support for charset_normalizer >= 3?

[jku]

requires = [
    "charset_normalizer>=2,<4",

it's already supported in main branch

[kloczek]

There are as well checks in __init__.py

[kloczek]

OK I see that changes in __init__.py are added as well.
BTW: does really all those checs really necessary? 🤔

[intgr]

Already fixed in #6261, pending a release.