Bump mypy from 1.0.1 to 1.1.1 in /requirements

Bumps [mypy](https://github.com/python/mypy) from 1.0.1 to 1.1.1.
- [Release notes](https://github.com/python/mypy/releases)
- [Commits](python/mypy@v1.0.1...v1.1.1)

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

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

Author: dependabot[bot]

requirements/dev-requirements.txt

@@ -10,7 +10,7 @@ doc8==1.1.1
 dodgy==0.2.1  # Look for uploaded secrets
 freezegun==1.2.2
 furo==2022.12.7
-mypy==1.0.1  # Type checking
+mypy==1.1.1  # Type checking
 pip_check_reqs==2.4.4
 pydocstyle==6.3.0  # Lint docstrings
 pyenchant==3.2.2  # Bindings for a spellchecking sytem