build(deps): Bump mock-ssh-server from 0.9.0 to 0.9.1 (#6607)

Bumps [mock-ssh-server](https://github.com/carletes/mock-ssh-server) from 0.9.0 to 0.9.1.
- [Release notes](https://github.com/carletes/mock-ssh-server/releases)
- [Commits](carletes/mock-ssh-server@0.9.0...0.9.1)

---
updated-dependencies:
- dependency-name: mock-ssh-server
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

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

requirements/tests.txt

@@ -12,7 +12,7 @@ pytest-docker==0.10.3
 flaky==3.7.0
 mock==4.0.3
 rangehttpserver==1.2.0
-mock-ssh-server==0.9.0
+mock-ssh-server==0.9.1
 wget==3.2
 filelock==3.0.12
 wsgidav==3.1.1