Draft: Update Ironbank

This MR contains the following updates:

Package	Update	Change
ironbank/opensource/nginx/nginx	patch	1.21.5 -> 1.21.6
registry1.dso.mil/ironbank/grafana/grafana-enterprise-logs	minor	v1.2.0 -> 1.3.0
registry1.dso.mil/ironbank/opensource/grafana/loki	patch	2.4.1 -> 2.4.2
registry1.dso.mil/ironbank/opensource/nginx/nginx	patch	1.21.5 -> 1.21.6

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Configuration

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This MR has been generated by Renovate Bot.