Remove Pydantic Version Constraint Due to Inflect Update

[Joost385]

Currently, pydantic is pinned to version 1, which leads to conflicts with common frameworks such as fastapi.

NeMo/requirements/requirements_common.txt

Line 4 in d3c5896

pydantic<2 # remove after inflect supports Pydantic 2.0+

It seems that inflect now supports pydantic 2, see jaraco/inflect#187. Their requirements now list pydantic >= 1.9.1. Given this update, is it possible to remove the pydantic version constraint without further changes?

[titu1994]

I'll unpin it tomorrow, seems it should be fine.