lxml requirements too strict

[RadioErewan]

Installing rss-parser on Windows results in uninstallation of lxml4.6.3 and reinstall of 4.5.2 (which leads to codepage errors on my python 3.9, rollback to 4.6.3 and aborted rss-parser install).
Changing requirements in wheel to 4.6.3 fixes problem localy.

[dhvcc]

Do you use virtual environment? You use python 3.9, am I correct?

[RadioErewan]

Yes, virtual environment and Python 3.9. I tried to skip venv and the result is the same.

[dhvcc]

Hey, @RadioErewan , I've updated the requirements, so now everything sohuld work

It's latest release 2.2 a6bdb78, already on PyPi