Bump mypy from 0.991 to 1.0.0 in /requirements

Bumps [mypy](https://github.com/python/mypy) from 0.991 to 1.0.0.
- [Release notes](https://github.com/python/mypy/releases)
- [Commits](python/mypy@v0.991...v1.0.0)

---
updated-dependencies:
- dependency-name: mypy
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

requirements/dev-requirements.txt

@@ -14,7 +14,7 @@ flake8==6.0.0  # Lint
 freezegun==1.2.2
 furo==2022.12.7
 isort==5.11.4  # Lint imports
-mypy==0.991  # Type checking
+mypy==1.0.0  # Type checking
 pip_check_reqs==2.4.3
 pydocstyle==6.2.3  # Lint docstrings
 pyenchant==3.2.2  # Bindings for a spellchecking sytem