Chore: Integrate prometheus for metrics - WPB-21844

[bbaarriiss]

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What's new in this PR?

Issues

We need usage stats for Remind App. So that we can know which request is made how many times.

Solutions

Integrate Prometheus metrics and add some basic usage stats metrics for some commands.

How to Test

Locally -> Run the application and send request(s) on staging via curl. Then verify the metrics with their counts from http://localhost:8080/q/metrics

Stating -> After the deployment on staging, we should see the metrics on Grafana if all the K8s related additions are correct.

Attachments (Optional)

Here is the sample output can be seen from http://localhost:8080/q/metrics
ℹ️ 'q' is the default context root for Quarkus applications

[spoonman01]

LGTM. Passing the UsageMetrics component into the ReminderEventHandler looks pretty simple