Update bitnami/redis Docker tag to v7.0.12

This MR contains the following updates:

Package	Type	Update	Change
bitnami/redis	ironbank-docker	patch	7.0.11 -> 7.0.12
bitnami/redis		patch	7.0.11 -> 7.0.12
bitnami/redis	stage	patch	7.0.11 -> 7.0.12

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