Create/Update prometheus monitors for different ODH components

[HumairAK]

First confirm with odh (likely via issue upstream) if there are plans to add such service monitors and the eta. Based on this feedback, we should discuss here whether we need to proceed with adding our own and sending them upstream.

[anishasthana] At a minimum, we should update/create monitoring for the following:

• Jupyterhub
• Kafka
• Superset
• Data Catalog (once it's in)
• Argo
• Airflow

[anishasthana]

Can we split this into individual issues per component? Would be easier to track progress that way imo.

[anishasthana]

@HumairAK Let's rename the issue to say "Create prometheus monitors for different ODH components". In some cases, we will need to use pod monitors

[anishasthana]

Also, kafka monitoring was added in opendatahub-io/odh-manifests#230 :-)

[HumairAK]

The strategy has evolved a bit, we'll be using one service monitor for monitoring odh components, see here and the adr here for more info.