install.md step 2 does not work because the github repo no longer exists

Tasks:

• update documentation to reflect migration to code.usgs.gov
  Non-exhaustive list of documentation to look at:
  • docs/install.md - adapt the pip install ... command
  • docs/develop.md - adapt the fork and clone targets
  • docs/install_docker.md - usgs/geomag-algorithms assumes this is pulled from Dockerhub; we should offer instructions for pulling the images from the USGS' container repository, which we need to figure out how to do from HazDev...similar for the docker instructions in the README.md file.
• update pyproject.toml to allow Python versions from 3.8 to 3.11.*
  • research possible breaking changes in Py3.11
  • install latest Python and see if geomag-algorithms passes all unit tests

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Original issue reported by dwilson:

on install.md, step 2 says to run pip install git+https://github.com/usgs/geomag-algorithms.git

but that doesn't work because the github repo is gone.

remote: Repository not found. fatal: unable to access 'https://github.com/usgs/geomag-algorithms.git/'