Add extended attribute to cluster-status action

[Arif Ali]

Add the ability to grab the extended attributes from cluster status from the innodb cluster

The relevant review has been pushed for review

https://review.opendev.org/c/openstack/charm-mysql-innodb-cluster/+/905307

The charm was built locally, and tested and the following pastebins give the relevant results

original output with no extended output
https://paste.ubuntu.com/p/hy99bKhcMJ/

output with extended=2
https://paste.ubuntu.com/p/wJddvxSFCW/

output with extended=3
https://paste.ubuntu.com/p/RHK5yK5F5n/

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/openstack/charm-mysql-innodb-cluster/+/905307
Committed: https://opendev.org/openstack/charm-mysql-innodb-cluster/commit/e355a51606d2f79cdd253d568614a366decfd0f9
Submitter: "Zuul (22348)"
Branch: master

commit e355a51606d2f79cdd253d568614a366decfd0f9
Author: Arif Ali <email address hidden>
Date: Thu Jan 11 13:54:10 2024 +0000

    Add extended parameter for cluster-status

    Closes-Bug: #2051568
    Change-Id: I53a6a1e4b54e3632ce90e4350a14bb45fba125c6

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/jammy
Review: https://review.opendev.org/c/openstack/charm-mysql-innodb-cluster/+/914872

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.opendev.org/c/openstack/charm-mysql-innodb-cluster/+/914872
Committed: https://opendev.org/openstack/charm-mysql-innodb-cluster/commit/18d7f888c1ab6e59ce55211b4e4055da67896e9a
Submitter: "Zuul (22348)"
Branch: stable/jammy

commit 18d7f888c1ab6e59ce55211b4e4055da67896e9a
Author: Arif Ali <email address hidden>
Date: Thu Jan 11 13:54:10 2024 +0000

    Add extended parameter for cluster-status

    Closes-Bug: #2051568
    Change-Id: I53a6a1e4b54e3632ce90e4350a14bb45fba125c6
    (cherry picked from commit e355a51606d2f79cdd253d568614a366decfd0f9)