Upgrade python

[rpiazza]

@clenk

Can you look into this? For some reason the pre-commit is not working. Nothing stands out - see the actions

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.43%. Comparing base (17445a0) to head (4f0e1d2).
Report is 17 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #587      +/-   ##
==========================================
+ Coverage   87.29%   87.43%   +0.13%     
==========================================
  Files         153      155       +2     
  Lines       18033    18088      +55     
==========================================
+ Hits        15742    15815      +73     
+ Misses       2291     2273      -18     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[clenk]

Think it might be caused by PyCQA/isort#2077 so we should upgrade the version of isort used in https://github.com/oasis-open/cti-python-stix2/blob/master/.pre-commit-config.yaml#L19.

[rpiazza]

I guess I need to do it because of permissions, right?