If on the main branch already, it does not make sense to check if the latest commit is the same non-dev version.
This fixes an annoyance where the CI Lint job would fail on release main commits, but besides that was not causing any other issues.
* Added script to check/sync versions using CHANGELOG.md as a source of truth.
* Script currently only syncs __version__.py but can easily be extended to cover other files by adding the files to an array in the script.
* Also updated sphinx conf.py to get version dynamically from __version__.py
