Drop python 3.7, add 3.12

[j-bennet]

Description

• Drop python 3.7.
• Add python 3.12.
• Other housekeeping.

Blocker:

• support python 3.12 -> PEP 632, Remove the distutils package. python-pendulum/pendulum#696

Checklist

• I've added this contribution to the changelog.rst.
• I've added my name to the AUTHORS file (or it's already there).

• I installed pre-commit hooks (pip install pre-commit && pre-commit install), and ran black on my code.
• Please squash merge this pull request (uncheck if you'd like us to merge as multiple commits)

[codecov-commenter]

Codecov Report

Attention: 237 lines in your changes are missing coverage. Please review.

Comparison is base (6884c29) 84.15% compared to head (a6dddda) 79.60%.
Report is 72 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1426      +/-   ##
==========================================
- Coverage   84.15%   79.60%   -4.56%     
==========================================
  Files          21       25       +4     
  Lines        2720     3030     +310     
==========================================
+ Hits         2289     2412     +123     
- Misses        431      618     +187     

Files	Coverage Δ
pgcli/__init__.py	100.00% <100.00%> (ø)
pgcli/completion_refresher.py	91.76% <100.00%> (+1.17%)	⬆️
pgcli/packages/parseutils/__init__.py	100.00% <100.00%> (ø)
pgcli/packages/parseutils/tables.py	97.67% <ø> (ø)
pgcli/packages/prompt_utils.py	70.00% <100.00%> (+5.29%)	⬆️
pgcli/packages/sqlcompletion.py	97.67% <ø> (ø)
pgcli/pgstyle.py	64.00% <ø> (ø)
pgcli/magic.py	0.00% <0.00%> (ø)
pgcli/auth.py	91.30% <91.30%> (ø)
pgcli/key_bindings.py	52.94% <66.66%> (-0.19%)	⬇️
... and 8 more

... and 1 file with indirect coverage changes

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[laixintao]

ha, sorry missed your work on python 3.12. I closed mine: #1428

but seems the tests on 3.12 is unstable, don't know why.

from my branch, it sometimes success sometimes fail exactly like yours. (see https://github.com/dbcli/pgcli/pull/1428/commits , no code change in last 2 commit but one failed one succeed.)

[j-bennet]

but seems the tests on 3.12 is unstable, don't know why.

from my branch, it sometimes success sometimes fail exactly like yours. (see https://github.com/dbcli/pgcli/pull/1428/commits , no code change in last 2 commit but one failed one succeed.)

Yes! I'm trying to work around that. May just have to skip it with 3.12.

[j-bennet]

@laixintao I skipped the failing checks. The build now passes. I still want to find out what's going on, but that can be done in a follow-up PR. What do you think?

[laixintao]

Look pretty good! thanks 👍