Add automation for updating hardcoded numbers in repo

[trynthink]

There are a few locations in the repo where there are hardcoded values that are easy to forget to update unless the particular file is being updated in a commit. As a result, these hardcoded values can get extremely out of date. Some kind of automation, e.g., pre-commit hook, pre-push hook, or GitHub Actions, that could automatically update these values would be a nice-to-have feature for keeping the repo in good shape.

Specific examples already identified (more might be identified as we revisit different parts of the repo):

• Copyright year(s)
  • LICENSE.md
  • docs/conf.py
• Version number
  • pyproject.toml
  • docs/conf.py