feat: Add support for Python 3.12 #93 via #94

feat: Drop support for Python 3.7 as part of #91

fix: Publish anciliary files only to sdist #66 via #87 (thanks to Maxwell G <[email protected]>)

fix: Type of `Requirement.specs` was incorrect #78

fix: `-e` in `requirements.txt` did not handle local paths correctly #97

chore(dev-deps): Updated all development dependencies

chore(deps): include types-setuptools as dependency

Signed-off-by: Paul Horton <[email protected]>