Update dependencies (#1029)

`poetry update` output included:
  - Updating certifi (2023.11.17 -> 2024.2.2)
  - Updating dnspython (2.4.2 -> 2.6.1)
  - Updating sniffio (1.3.0 -> 1.3.1)
  - Updating typing-extensions (4.10.0 -> 4.11.0)
  - Updating anyio (4.2.0 -> 4.3.0)
  - Updating email-validator (2.1.0.post1 -> 2.1.1)
  - Updating httpcore (1.0.2 -> 1.0.5)
  - Updating markupsafe (2.1.3 -> 2.1.5)
  - Updating packaging (23.2 -> 24.0)
  - Updating platformdirs (4.1.0 -> 4.2.0)
  - Updating pluggy (1.3.0 -> 1.4.0)
  - Updating zipp (3.17.0 -> 3.18.1)
  - Updating argcomplete (3.2.1 -> 3.2.3)
  - Updating black (23.12.0 -> 24.3.0)
  - Updating coverage (7.3.3 -> 7.4.4)
  - Updating httpx (0.25.2 -> 0.27.0)
  - Updating importlib-metadata (7.0.0 -> 7.1.0)
  - Updating pydantic (1.10.14 -> 2.6.4)
  - Updating rich (13.7.0 -> 13.7.1)
  - Updating urllib3 (2.1.0 -> 2.2.1)
  - Updating datamodel-code-generator (0.25.1 -> 0.25.5)
  - Updating mypy (1.8.0 -> 1.9.0)
  - Updating ruff (0.3.4 -> 0.3.5)
  - Updating types-requests (2.31.0.20240311 -> 2.31.0.20240406)

Updating everything at once to fix a few problems
(black/datamodel-code-generator interdependencies) and group updates in
one PR.

Signed-off-by: Elliot Gunton <[email protected]>