Fix/duplicate cd

[Oisin-M]

Description

There are two cd actions, which is problematic since this will cause a failure if they both try and push to PyPI. This removes the duplicate one in ci.yml, and keeps the one using our reusable actions in cd.yml (which was used to make the last release)

Contributor Declaration

By opening this pull request, I affirm the following:

• All authors agree to the Contributor License Agreement.
• The code follows the project's coding standards.
• I have performed self-review and added comments where needed.
• I have added or updated tests to verify that my changes are effective and functional.
• I have run all existing tests and confirmed they pass.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 63.33%. Comparing base (606eb41) to head (a7dc1a1).
⚠️ Report is 3 commits behind head on fix/remove_pytest.

Additional details and impacted files

@@                Coverage Diff                 @@
##           fix/remove_pytest      #22   +/-   ##
==================================================
  Coverage              63.33%   63.33%           
==================================================
  Files                      8        8           
  Lines                    540      540           
==================================================
  Hits                     342      342           
  Misses                   198      198           

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