Update Ironbank

This MR contains the following updates:

Package	Update	Change
gluon	patch	0.9.6 -> 0.9.7
registry1.dso.mil/ironbank/opensource/external-secrets/external-secrets (source)	major	v0.20.4 -> v1.2.1
registry1.dso.mil/ironbank/opensource/external-secrets/external-secrets (source)	major	0.20.4 -> 1.2.1
registry1.dso.mil/ironbank/opensource/kubernetes/kubectl (source)	minor	v1.33 -> v1.34

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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This MR was automatically generated by Renovate Bot.

Upgrade Notices

No Breaking Changes or Upgrade Notices found for the new v1.2.1

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