chore(deps): update mypy requirement from <=1.13.0 to <=1.14.1 (#1626)

Updates the requirements on [mypy](https://github.com/python/mypy) to permit the latest version.
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@v0.1.0...v1.14.1)

---
updated-dependencies:
- dependency-name: mypy
  dependency-type: direct:production
...

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

requirements/testing.txt

@@ -16,4 +16,4 @@ psutil>=6.0.0,<7
 boto3<=2
 # For AWS tests
 moto>=4.0.13,<6
-mypy<=1.13.0
+mypy<=1.14.1