Add Python 3.13 compatibility and bump psycopg2

[johnatawnclementawn]

Types of changes

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Description of Change

Bumps psycopg2 dependency for compatibility with python 3.13. Ran into an issue similar to that described here: psycopg/psycopg2#1692

Issues Solved

Closes #

Checklist

• I targeted one of these branches:
  • dev/8.0.x (under development): features, bugfixes not covered below
  • dev/7.6.x (main support): regressions, crashing bugs, security issues, major bugs in new features
  • dev/6.2.x (extended support): major security issues, data loss issues
• I added a changelog in arches/releases
• I submitted a PR to arches-docs (if appropriate)
• Unit tests pass locally with my changes
• I added tests that prove my fix is effective or that my feature works
• My test fails on the target branch

Accessibility Checklist

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Ticket Background

• Sponsored by: @fargeo
• Found by: @johnatawnclementawn
• Tested by: @jacobtylerwalls
• Designed by: @

Further comments

[jacobtylerwalls]

Nice. Since you've got arches running on 3.13 now, let's do a few more things to declare support for it in general:

• add the Trove classifier for 3.13 to pyproject.toml (just copy/adjust the one for 3.12)
• add 3.13 to the tested versions on CI in the github action (and project template copy)
• add a little release note in 8.0.0.md
• adjust pr title