trilio-wlm 4.1/stable does not support bionic

[Chuan Li]

$ juju deploy ch:trilio-wlm trilio-wlmb --channel 4.1/stable --series bionic
ERROR series "bionic" not supported by charm, supported series are: jammy, focal. Use --force to deploy the charm anyway.

$ juju deploy ch:trilio-wlm trilio-wlmb --channel 4.1/stable --series bionic --force
Located charm "trilio-wlm" in charm-hub, revision 7
ERROR listing resources for charm "ch:amd64/bionic/trilio-wlm-7": No revision was found in the Store.

Seem 4.2/stable ONLY supports bionic

$ juju info trilio-wlm --series bionic
name: trilio-wlm
publisher: OpenStack Charmers
summary: TrilioVault Workload Manager Service
description: |
  TrilioVault provides a backup and recovery solution that natively
  integrates with OpenStack Clouds.
  .
  This charm provides the TrilioVault Workload Manager Service which
  forms part of the TrilioVault solution.
store-url: https://charmhub.io/trilio-wlm
charm-id: EACBtyCUIdrXR2cEyCd9QGzu269XjNl0
supports: bionic
tags: cloud, storage
subordinate: false
relations:
  provides: {}
  requires:
    amqp: rabbitmq
    certificates: tls-certificates
    ha: hacluster
    identity-service: keystone
    shared-db: mysql-shared
channels: |
  latest/stable: –
  latest/candidate: –
  latest/beta: –
  latest/edge: 4928917 2022-11-14 (36) 5MB
  4.2/stable: 398ab86 2022-11-16 (51) 5MB
  4.2/candidate: ↑
  4.2/beta: ↑
  4.2/edge: ↑
  4.1/stable: –
  4.1/candidate: –
  4.1/beta: –
  4.1/edge: –
  4.0/stable: –
  4.0/candidate: –
  4.0/beta: –
  4.0/edge: –

$ juju deploy ch:trilio-wlm trilio-wlmc --channel 4.2/stable --series bionic
Located charm "trilio-wlm" in charm-hub, revision 46
Deploying "trilio-wlmc" from charm-hub charm "trilio-wlm", revision 46 in channel 4.2/stable on bionic

The above test result clearly breaks the convention in [1], 4.1 should be supported on bionic.

[1] https://docs.openstack.org/charm-guide/latest/admin/trilio.html#supported-combinations