Update Ironbank

This MR contains the following updates:

Package	Update	Change
registry1.dso.mil/ironbank/bitnami/postgres-exporter	patch	0.12.0 -> 0.12.1
registry1.dso.mil/ironbank/opensource/nginx/nginx	minor	1.23.3 -> 1.25.1
registry1.dso.mil/ironbank/opensource/postgres/postgresql12	minor	12.14 -> 12.15

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