fix(jitsi): Raise Jibri memory limits to fullfil Jibri's 2Gi /dev/shm requirement and update Helm chart; To update an existing installation you need to manually delete the `jitsi-prosody` stateful set before the update e.g. `kubectl -n <your_namespace> delete --cascade=orphan statefulsets jitsi-prosody`. Ensure you use the `--cascade=orphan` part, otherwise you have to remove and reinstall the complete deployment.