Dependencies more flexible in lxml

[AdilsonTorres]

I was testing pysros and some other dependencies libs in my project and if I'm using a more recent lib dependency requirement to lxml greater than 4.9 (like the recent lxml version 5.2.2) the pysros restrict requirements fails since only permits 4.9.*

It is possbile to permit more recent version from lxml? Since the usage seems minimal from this package, and also recent versions from lxml seems not impact the compatibility from current version.

Maybe the requirements be lxml>=4.9.4 (most recent 4.9 version)

Thanks.