build(deps-dev): bump requests from 2.27.1 to 2.28.0

Bumps [requests](https://github.com/psf/requests) from 2.27.1 to 2.28.0.
- [Release notes](https://github.com/psf/requests/releases)
- [Changelog](https://github.com/psf/requests/blob/main/HISTORY.md)
- [Commits](https://github.com/psf/requests/compare/v2.27.1...v2.28.0)

---
updated-dependencies:
- dependency-name: requests
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

setup.py

@@ -78,7 +78,7 @@ setuptools.setup(
             "mypy==0.960",
             "psutil==5.9.1",
             "stix2==3.0.1",
-            "requests==2.27.1",
+            "requests==2.28.0",
             # type stubs for mypy
             "types-backports==0.1.3",
             "types-colorama==0.4.14",