feat: add support for exposing OpenTelemetry metrics

[JessicaJHee]

Description of the change

Adds extra port to expose the metrics reported by OpenTelemetry

• Note that the metrics are disabled by default

Existing or Associated Issue(s)

RHIDP-4912

Checklist

• Chart version bumped in Chart.yaml according to semver.
• Variables are documented in the values.yaml and added to the README.md. The pre-commit utility can be used to generate the necessary content. Use pre-commit run -a to apply changes.
• JSON Schema template updated and re-generated the raw schema via pre-commit hook.
• List tests pass for Chart using the Chart Testing tool and the ct lint command.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[coreydaley]

/hold
/lgtm

[JessicaJHee]

/hold cancel