Bump mypy from 1.11.1 to 1.14.1 in /dev_tools/requirements

Bumps [mypy](https://github.com/python/mypy) from 1.11.1 to 1.14.1.
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@v1.11.1...v1.14.1)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

dev_tools/requirements/deps/mypy.txt

@@ -1,5 +1,5 @@
 # the mypy dependency file
-mypy==1.11.1
+mypy==1.14.1
 
 # packages with stub types for various libraries
 types-protobuf>=3.20.0