Update Ironbank

This MR contains the following updates:

Package	Update	Change
registry1.dso.mil/ironbank/opensource/mattermost/mattermost-operator	patch	v1.20.0 -> v1.20.1
registry1.dso.mil/ironbank/opensource/mattermost/mattermost-operator	patch	1.20.0 -> 1.20.1

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Relates #28 (closed)