Update Ironbank

This MR contains the following updates:

Package	Update	Change
registry1.dso.mil/ironbank/elastic/elasticsearch/elasticsearch (source)	patch	8.15.1 -> 8.15.2
registry1.dso.mil/ironbank/elastic/kibana/kibana (source)	patch	8.15.1 -> 8.15.2
registry1.dso.mil/ironbank/opensource/bitnami/elasticsearch-exporter (source)	minor	1.7.0 -> 1.8.0

Complete MR checklist

Assignee

• Followed upgrade instructions outlined in docs/DEVELOPMENT_MAINTENANCE.md
• Update Docs with new/updated steps as needed
• Tested and Validated Changes made with supporting info like logs or screenshots from test pipelines

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• Tested and Validated changes

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Upgrade Notices

Taken from the Prometheus-Elastic-Exporter README.md on upgrading to 6.0.0 and adapted for Big Bang elasticsearch-kibana package (link doc).

To 6.0.0

In release 6.0, the chart API version has been increased to v2. From now on, the chart supports Helm 3 only.

The minimum Kubernetes version supported by the chart has been raised to 1.19.

Labels and selectors have been replaced following Helm 3 label and annotation best practices:

Previous	Current
app	app.kubernetes.io/name
chart	helm.sh/chart
[none]	app.kubernetes.io/version
heritage	app.kubernetes.io/managed-by
release	app.kubernetes.io/instance

Important: As the change is affecting immutable selector labels, the deployment must be deleted before upgrading the release. The below command assumes that the Elasticsearch-Kibana package is is deployed in the default Big Bang logging namespace for Elasticsearch-Kibana, one should look to confirm the namespace of their Elasticsearch-Kibana e.g.:

kubectl delete deploy -l app=metrics -n logging

Once the resources have been deleted, you can upgrade the release.