Update mypy requirement from ~=0.0 to ~=1.13 in /tests

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...v1.13.0)

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

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

tests/requirements.txt

@@ -1,5 +1,5 @@
 dpytest~=0.6.0
-mypy~=0.0
+mypy~=1.13
 pytest~=7.2.0
 pytest-asyncio~=0.20.0
 pytest-mock~=3.10.0