chore(deps): update ironbank

This MR contains the following updates:

Package	Update	Change
registry1.dso.mil/ironbank/big-bang/grafana/grafana-plugins (source)	patch	12.4.0 -> 12.4.1
registry1.dso.mil/ironbank/opensource/grafana/grafana-image-renderer (source)	minor	v5.6.0 -> v5.7.2

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

Add supporting info below

issue

Reviewer only

• Tested and Validated changes

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻️ Rebasing: Whenever MR becomes conflicted, or you tick the rebase/retry checkbox.

👻 Immortal: This MR will be recreated if closed unmerged. Get config help if that's undesired.

---

• If you want to rebase/retry this MR, check this box

---

This MR was automatically generated by Renovate Bot.

Upgrade Notices

N/A