ci: remove workflows to stale branch

[evenstensberg]

Summary

Removes next branch from running in CI

What kind of change does this PR introduce?

chore, closes #214

Did you add tests for your changes?

N/A

Does this PR introduce a breaking change?

No

If relevant, what needs to be documented once your changes are merged or what have you already documented?

N/A

Use of AI

No ai used

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.40%. Comparing base (aa03277) to head (9a817b5).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #215   +/-   ##
=======================================
  Coverage   95.40%   95.40%           
=======================================
  Files           9        9           
  Lines         848      848           
  Branches      360      361    +1     
=======================================
  Hits          809      809           
  Misses         35       35           
  Partials        4        4           

Flag	Coverage Δ
integration	95.40% <ø> (ø)

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