Updating mypy in poetry to version 1

[davidorme]

Description

This updates mypy in poetry to match the version now being used in pre-commit - I was getting errors from pre-commit that weren't being shown in VSCode, because it uses the setup in the poetry environment.

The initial PR was also updating numpy to 2.2.0 and that turns out to be a problem because of a change in the handling of typing numpy floating arrays:

numpy/numpy#27957

This still seems a bit lively, so this PR:

• Updates pyproject.toml to specify mypy: "^1.0.0" to keep up with pre-commit.

It also pins numpy in two places to <2.2

• pyproject.toml sets ~2.1
• .pre-commit-config.yaml specifies numpy==2.1.3 as a mypy dependency.

We'll need to unpin those at some point, but let's see how that numpy issue resolves.

Fixes #384 (issue)

Type of change

• New feature (non-breaking change which adds functionality)
• Optimization (back-end change that speeds up the code)
• Bug fix (non-breaking change which fixes an issue)

Key checklist

• Make sure you've run the pre-commit checks: $ pre-commit run -a
• All tests pass: $ poetry run pytest

Further checks

• Code is commented, particularly in hard-to-understand areas
• Tests added that prove fix is effective or that feature works

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.09%. Comparing base (1f315ba) to head (72313b2).
Report is 505 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #365      +/-   ##
===========================================
+ Coverage    95.29%   96.09%   +0.80%     
===========================================
  Files           28       35       +7     
  Lines         1720     2766    +1046     
===========================================
+ Hits          1639     2658    +1019     
- Misses          81      108      +27     

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[j-emberton]

looks good