Fix required maximum version of typing-extensions

[albertvillanova]

This PR fixes the required maximum version of typing-extensions.

Currently it is bounded to <4.2.0: typing_extensions>=3.7.4.1,<4.2.0; python_version < "3.8"

This PR sets the upper bound to all compatible versions, until the next major release <5.0.0.

See:

• TypeError: dataclass_transform() got an unexpected keyword argument 'field_specifiers' spaCy#12034

See issue in pydantic:

• Pydantic 1.10.3 incompatible with typing-extensions 4.1.1 pydantic/pydantic#4885

See fixing PR in pydantic (typing-extensions>=4.2.0), which will be incompatible with your requirement typing_extensions>=3.7.4,<4.2.0; python_version < "3.8":

• Typing extensions min version pydantic/pydantic#4886

[svlandeg]

Thanks for the PR and the context, we appreciate it!

As Pydantic 1.10.3 has been yanked, 1.10.2 should still work fine with spaCy and users shouldn't be impacted anymore. We'll talk internally whether we want to raise to <5.0.0 or perhaps something a little more restrictive like <4.5.0.

[adrianeboyd]

I don't know whether we want to additionally forbid pydantic v1.10.3. Yanked packages aren't always supported correctly (poetry only added support quite recently), but we also don't typically forbid packages for this kind of reason, usually only if there are security vulnerabilities or it's broken across the board.