Bump mypy from 1.15.0 to 1.16.0 in /results-processor (#4418)

Bumps [mypy](https://github.com/python/mypy) from 1.15.0 to 1.16.0.
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@v1.15.0...v1.16.0)

---
updated-dependencies:
- dependency-name: mypy
  dependency-version: 1.16.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

results-processor/requirements.txt

@@ -70,12 +70,14 @@ markupsafe==2.1.2
     #   werkzeug
 mccabe==0.7.0
     # via flake8
-mypy==1.15.0
+mypy==1.16.0
     # via -r requirements.in
 mypy-extensions==1.0.0
     # via mypy
 packaging==23.1
     # via gunicorn
+pathspec==0.12.1
+    # via mypy
 proto-plus==1.22.3
     # via google-cloud-datastore
 protobuf==4.25.4