v1.6.1

This is a patch release that addresses:

• Fix fakedict/config issue (#341)
• Remove py2neo dependency and code (#356)
  • This prevented anyone from installing medcat since it was no longer available on pypi
  • PS! It may still work for some folk if the py2neo package is cached by pip, but at some point the cache will be invalidated
• Some minor changes to make GHA pass
  • Fix for Rosalind links (#342)
  • Allow production workflow on .post branches
  • Make production workflow use correct branch
  • Bump ubuntu version in publish workflow (from 18.04 to 20.04)
  • Bump mypy version to 0.991 for compatibility
  • Pin pydantic version to less than 1.8 for spacy compatibility

Full Changelog: v1.6.0...v1.6.1