Update registry1.dso.mil/ironbank/opensource/redis/redis7 Docker tag to v7.4.7

This MR contains the following updates:

Package	Type	Update	Change
registry1.dso.mil/ironbank/opensource/redis/redis7	ironbank-base	patch	7.4.6 -> 7.4.7
registry1.dso.mil/ironbank/opensource/redis/redis7	final	patch	7.4.6 -> 7.4.7

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