Automations for sparc.client

[athril]

This pull request includes the following:

• automated dynamic versioning of the sparc.client using setuptools_scm
  • no hard-coded version is hard coded in the code base
  • version is automatically inferred based on the latest tag
  • file src/sparc/client/_version.py is only included in PyPI release
• automated tagging and releases of software with deployment to Github and PyPI after workflow dispatch (release.yml) #33
• automated generation of CHANGELOG.md based on commits in semantic versioning format #35
• updates to CI.yml workflow in order to validate incoming pull requests (CI.yml)
• update to sphinx.yml workflow to launch only on main branch
• updates to documentation

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (87c7056) 100.00% compared to head (0a419f6) 100.00%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #37 +/- ## ========================================= Coverage 100.00% 100.00% ========================================= Files 8 8 Lines 369 370 +1 ========================================= + Hits 369 370 +1 ``` | [Flag](https://app.codecov.io/gh/nih-sparc/sparc.client/pull/37/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=nih-sparc) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/nih-sparc/sparc.client/pull/37/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=nih-sparc) | `100.00% <100.00%> (?)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=nih-sparc#carryforward-flags-in-the-pull-request-comment) to find out more.

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[athril]

I have also updated Sphinx.yml workflow. It seems it used to be launched and deploy docs on each pull request (should be run only on push to main). Please let me know what you think @pcrespov.

[athril]

There are some review dog formatting issues to address.

All formatting issues have been resolved. Ready to merge?

[athril]

Thank you @pcrespov for approving the changes. Any other comments/suggestions @hsorby @bisgaard-itis ? I would like to merge it by the end of the month at the latest.