Bump mypy from 1.3.0 to 1.4.0

Bumps [mypy](https://github.com/python/mypy) from 1.3.0 to 1.4.0.
- [Commits](python/mypy@v1.3.0...v1.4.0)

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

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

setup.py

@@ -21,7 +21,7 @@
     ]
     + FRAMEWORKS,
     "lint": [
-        "mypy==1.3.0",
+        "mypy==1.4.0",
         "flake8==6.0.0",
         "flake8-bugbear==23.6.5",
         "pre-commit>=2.4,<4.0",