chore(deps-dev): Bump mypy from 1.20.2 to 2.1.0

Bumps [mypy](https://github.com/python/mypy) from 1.20.2 to 2.1.0.
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@v1.20.2...v2.1.0)

---
updated-dependencies:
- dependency-name: mypy
  dependency-version: 2.1.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

pyproject.toml

@@ -55,7 +55,7 @@ members = [
 
 [dependency-groups]
 dev = [
-    "mypy==1.20.2",
+    "mypy==2.1.0",
     "mypy-extensions~=1.1.0",
     "mypy-protobuf==5.0.0",
     "grpcio-tools==1.76.0",