bug#66920: python-pikepdf showing wrong version in egg

[Jack Hill]

Hi Guix,

This issue was brought to my attention by f1refly on IRC.

pdfarranger fails to build with the following error in the sanity-check 
phase:

"""
...checking requirements: ERROR: pdfarranger==1.10.1 
ContextualVersionConflict(pikepdf 0.0.0 
(/gnu/store/wli7mi9xb3zdlb9lbnn9haf79phff408-python-pikepdf-7.2.0/lib/python3.10/site-packages), 
Requirement.parse('pikepdf>=1.17.0'), {'pdfarranger'})
"""

Our python-pikepdf version is more than 1.17.0 though, it's 7.2.0. 
However, the egg in site-packages does list its version as 0.0.0.

Best,
Jack