Update Pandas dependency

[carschno]

The current version depends on pandas version ^1.5.3 which implies <2.0.
As a result, every project that uses Pandas >= 2.0 will not be able to use pagexml.

Unless there are reasons to enforce Pandas < 2.0, the simplest solution would be to allow for Pandas 2.0 and relax the version constraint to >=1.5.3 <3.0.0.

[brambg]

Thanks, this should be fixed in the latest version: 0.4.1