Update dependency quay.io/mongodb/mongodb-agent-ubi to v12

This MR contains the following updates:

Package	Type	Update	Change
quay.io/mongodb/mongodb-agent-ubi	ironbank-docker	major	11.0.11.7036-1-context -> 12.0.8.7575-1-context
quay.io/mongodb/mongodb-agent-ubi		major	11.0.11.7036-1 -> 12.0.8.7575-1
quay.io/mongodb/mongodb-agent-ubi	stage	major	11.0.11.7036-1-context -> 12.0.8.7575-1-context

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