downgrade pendulum to released version

[meeuw]

Description

"Unbump" pendulum to released version (3.0.0b1 is a beta version)

requiring 3.0.0b1 gives problems for packing pgcli for Fedora.

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)

[meeuw]

Related to #1426

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (8c72820) 79.63% compared to head (c7ce8d5) 79.63%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1434   +/-   ##
=======================================
  Coverage   79.63%   79.63%           
=======================================
  Files          25       25           
  Lines        3035     3035           
=======================================
  Hits         2417     2417           
  Misses        618      618           

see 1 file with indirect coverage changes

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[meeuw]

We might advice Python 3.12 users to install pgcli using pip --pre, to allow usage of beta versions?

[j-bennet]

Thank you @meeuw .