Bump rsa from 3.4.2 to 4.9.1

Bumps [rsa](https://github.com/sybrenstuvel/python-rsa) from 3.4.2 to 4.9.1.
- [Changelog](https://github.com/sybrenstuvel/python-rsa/blob/main/CHANGELOG.md)
- [Commits](https://github.com/sybrenstuvel/python-rsa/commits)

---
updated-dependencies:
- dependency-name: rsa
  dependency-version: 4.9.1
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

pyproject.toml

@@ -65,7 +65,7 @@ docs = [
     "django==3.2.25",
     "djangorestframework==3.14.0",
     "django-mptt>=0.14.0,<1",
-    "rsa==3.4.2",
+    "rsa==4.9.1",
     "ifcfg==0.24",
 ]