Pebble plan still contains logging endpoints even after loki is removed

[swetha1654]

Bug Description

I initially deployed the maubot charm and the loki charm (developed using anyCharm) and integrated those two. After deleting the loki charm, i can see the loki configuration details in the pebble plan of maubot-

As you can see here, loki application has been removed -

You can see the logging details here when i run pebble plan inside maubot after deleting loki app-

I believe the maubot operator should remove such information from the pebble plan once the application is removed

To Reproduce

juju deploy maubot
juju deploy loki-k8s # i originally deployed loki using anyCharm but i believe this is reproducible with the normal loki charm as well
juju integrate maubot loki-k8s
juju remove-application loki-k8s --force --no-wait --no-prompt
juju ssh --container maubot maubot/0 
pebble plan

Environment

user@myubuntu:~$ juju --version
3.5.4-genericlinux-amd64
user@myubuntu:~$ microk8s version
MicroK8s v1.29.10 revision 7396

Juju is run locally

Relevant log output

This contains all the revisions and the channels of the apps deployed - 

user@myubuntu:~/Canonical/maubot-operator$ juju status
Model     Controller    Cloud/Region        Version  SLA          Timestamp
testing1  mycontroller  microk8s/localhost  3.5.4    unsupported  16:53:41+05:30

App                       Version  Status  Scale  Charm                     Channel      Rev  Address         Exposed  Message
any-grafana                        active      1  any-charm                 latest/beta   44  10.152.183.22   no
any-loki                           active      1  any-charm                 latest/beta   44  10.152.183.162  no
maubot                             active      1  maubot                                   0  10.152.183.220  no
nginx-ingress-integrator           active      1  nginx-ingress-integrator  latest/edge   44  10.152.183.100  no       Ingress IP(s): 127.0.0.1, Service IP(s): 10.152.183.236
postgresql-k8s            14.12    active      1  postgresql-k8s            14/stable    444  10.152.183.42   no
synapse                            active      1  synapse                   latest/edge  493  10.152.183.77   no

Unit                         Workload  Agent  Address      Ports  Message
any-grafana/0*               active    idle   10.1.39.163
any-loki/0*                  active    idle   10.1.39.134
maubot/0*                    active    idle   10.1.39.165
nginx-ingress-integrator/0*  active    idle   10.1.39.188         Ingress IP(s): 127.0.0.1, Service IP(s): 10.152.183.236
postgresql-k8s/0*            active    idle   10.1.39.190         Primary
synapse/0*                   active    idle   10.1.39.178

Additional context

No response

[amandahla]

Issue will be tracked in ISD-2795