Update mypy requirement from <0.960,>=0.950 to >=0.950,<0.961 (#224)

* Update mypy requirement from <0.960,>=0.950 to >=0.950,<0.961

Updates the requirements on [mypy](https://github.com/python/mypy) to permit the latest version.
- [Release notes](https://github.com/python/mypy/releases)
- [Commits](python/mypy@v0.950...v0.960)

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

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

* Update setup.py

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

Author: dependabot[bot]

setup.py

@@ -19,7 +19,7 @@ def find_stub_files(name):
     readme = f.read()
 
 dependencies = [
-    "mypy>=0.950,<0.960",
+    "mypy>=0.950,<0.970",
     "django-stubs>=1.11.0",
     "typing-extensions>=3.10.0",
     "requests>=2.0.0",