chore(deps): bump python-vlc from 3.0.20123 to 3.0.21203

Bumps [python-vlc](https://github.com/oaubert/python-vlc) from 3.0.20123 to 3.0.21203.
- [Commits](https://github.com/oaubert/python-vlc/commits)

---
updated-dependencies:
- dependency-name: python-vlc
  dependency-version: 3.0.21203
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

requirements/requirements.viewer.txt

@@ -15,7 +15,7 @@ jsonschema==4.17.3 # This is the latest version that doesn't require Rust and Ca
 netifaces==0.10.9
 pydbus==0.6.0
 python-dateutil==2.9.0.post0
-python-vlc==3.0.20123
+python-vlc==3.0.21203
 pytz==2022.2.1
 pyzmq==27.0.2
 redis==3.5.3