Use Pydantic v1 API from v2

[mattwthompson]

Description

This is an easier attempt at #26, enabling v2 to be installed while basically keeping the code the same, using pydantic.v1.

Thanks for @jthorton for tipping us off to https://docs.pydantic.dev/latest/migration/#continue-using-pydantic-v1-features.

Todos

Notable points that this PR has either accomplished or will accomplish.

• [x] Set up testing for both Pydantic versions
• [x] Update codebase to use v1 from pydantic.v1 import path

Questions

• [ ] Question1

Status

• [ ] Ready to go

[codecov-commenter]

Codecov Report

Merging #27 (7ab6620) into main (ff399c9) will increase coverage by 0.09%. The diff coverage is 100.00%.

Additional details and impacted files

[mattwthompson]

This is working much better than I expected (and I expected it to work well and work quickly) at least by the green check.

Could I get a quick pair of eyes to make sure I'm not missing anything obvious @jthorton or @hmacdope?

[mattwthompson]

Thanks both! Now to incrementally do the same for every other repo ... 😁