Update mypy requirement from >=0.961 to >=1.19.1

Updates the requirements on [mypy](https://github.com/python/mypy) to permit the latest version.
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@v0.961...v1.19.1)

---
updated-dependencies:
- dependency-name: mypy
  dependency-version: 1.19.1
  dependency-type: direct:development
...

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

Author: dependabot[bot]

requirements-dev.txt

@@ -1,5 +1,5 @@
 black>=22.6.0
-mypy>=0.961
+mypy>=1.19.1
 # Include modules used for development
 pylint>=2.14.4
 pytest>=7.1.2