fix(version): Change to python-semantic-release #60 (#62)

* fix(version): Change to python-semantic-release #60

* Semantic Version updates were not working when a user merged an update
  into the main branch.
* The cause was a misunderstanding with the selected sem-ver package and
  its capabilities.
* Python-semantic-release has been implemented, with a config file and
  the relekang/python-semantic-release@master GitHub action.
* The setup.py, setup.cfg and sphinx conf.py files now use the
  __version__ style recommended by python-semantic-release.
* requirements_dev.txt now includes python-semantic-release for local
  checks using --noop.
* Automatic-Changelog workflows updates match semantic_release.yaml
  config files.

WIP #60

* fix(version): Typo in setup.cfg fixed #60

setup.cfg has a typo in version_variable =
setup.py:version, docs/source/conf.py:version
, docs should be ,docs

WIP #60

setup.cfg

@@ -12,7 +12,7 @@ replace = version='{new_version}'
 
 [semantic_release]
 branch =  main
-version_variable = setup.py:__version__, docs/source/conf.py:__version__
+version_variable = setup.py:__version__,docs/source/conf.py:__version__
 
 major_on_zero = false
 upload_to_pypi = false