Remove pytest-mypy

[AdrianDAlessandro]

Description

This removes pytest-mypy because of the issue with test discovery in the vscode extension. To make up for it, mypy has bee added to CI.

There is a chance the CI tests will fail because of either the run: pip install .[dev] making mypy . fail, or the test_version test causing problems with if we do run: pip install -r dev-requirements.txt. So this will need to be resolved either way.

Fixes #135

Type of change

• Documentation (non-breaking change that adds or improves the documentation)
• New feature (non-breaking change which adds functionality)
• Optimization (non-breaking, back-end change that speeds up the code)
• Bug fix (non-breaking change which fixes an issue)
• Breaking change (whatever its nature)

Key checklist

• All tests pass (eg. python -m pytest)
• The documentation builds and looks OK (eg. python -m sphinx -b html docs docs/build)
• Pre-commit hooks run successfully (eg. pre-commit run --all-files)

Further checks

• Code is commented, particularly in hard-to-understand areas
• Tests added or an issue has been opened to tackle that in the future. (Indicate issue here: # (issue))

[dalonsoa]

The same error you already know.

[dalonsoa]

I think that installing this in editable mode should solve the issues. True, it is not needed, but it causes no harm and might be useful to keep mypy happy.

[AdrianDAlessandro]

I have made two separate pushes to confirm everything passes and fails as we expect. I have no idea why installing in editable mode fixes this.

I also have changed the install the use the pinned dev-requirements so it runs the same in this repo as in any repos that use this template

[alexdewar]

A few comments, but on the whole seems sensible.