Update Ironbank

This MR contains the following updates:

Package	Update	Change
registry1.dso.mil/ironbank/big-bang/base	minor	1.2.0 -> 1.18.0
registry1.dso.mil/ironbank/bitnami/analytics/redis-exporter	minor	1.35.0 -> 1.37.0
registry1.dso.mil/ironbank/bitnami/redis	major	6.2.6 -> 7.0.2

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