Bump portend from 3.0.0 to 3.1.0 (#1572)

Bumps [portend](https://github.com/jaraco/portend) from 3.0.0 to 3.1.0.
- [Release notes](https://github.com/jaraco/portend/releases)
- [Changelog](https://github.com/jaraco/portend/blob/main/CHANGES.rst)
- [Commits](https://github.com/jaraco/portend/compare/v3.0.0...v3.1.0)

---
updated-dependencies:
- dependency-name: portend
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

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

[skip ci]

requirements.txt

@@ -28,7 +28,7 @@ oauthlib==3.1.1
 packaging==21.3
 paho-mqtt==1.6.1
 plexapi==4.7.2
-portend==3.0.0
+portend==3.1.0
 profilehooks==1.12.0
 PyJWT==2.3.0
 pyparsing==3.0.6