Update Ironbank

This MR contains the following updates:

Package	Update	Change
gluon	patch	0.5.4 -> 0.5.8
registry1.dso.mil/ironbank/elastic/elasticsearch/elasticsearch (source)	patch	8.15.2 -> 8.15.3
registry1.dso.mil/ironbank/elastic/kibana/kibana (source)	patch	8.15.2 -> 8.15.3
registry1.dso.mil/ironbank/opensource/kubernetes/kubectl (source)	patch	v1.30.5 -> v1.30.6

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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Reviewer only

• Tested and Validated changes

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Upgrade Notices

N/A