Bump mypy-protobuf from 3.5.0 to 5.0.0 in /sdks/python

Bumps [mypy-protobuf](https://github.com/nipunn1313/mypy-protobuf) from 3.5.0 to 5.0.0.
- [Changelog](https://github.com/nipunn1313/mypy-protobuf/blob/main/CHANGELOG.md)
- [Commits](https://github.com/nipunn1313/mypy-protobuf/commits)

---
updated-dependencies:
- dependency-name: mypy-protobuf
  dependency-version: 5.0.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

sdks/python/pyproject.toml

@@ -23,7 +23,7 @@ requires = [
     "wheel>=0.36.0",
     "grpcio-tools==1.62.1; python_version <= '3.12'",
     "grpcio-tools==1.71.0; python_version >= '3.13'",
-    "mypy-protobuf==3.5.0",
+    "mypy-protobuf==5.0.0",
     # Avoid https://github.com/pypa/virtualenv/issues/2006
     "distlib==0.3.9",
     # Numpy headers