Update quay.io/mongodb/mongodb-agent-ubi Docker tag to v11.12.0.7388

This MR contains the following updates:

Package	Type	Update	Change
quay.io/mongodb/mongodb-agent-ubi	ironbank-docker	minor	11.0.11.7036-1-context -> 11.12.0.7388-1-context
quay.io/mongodb/mongodb-agent-ubi	stage	minor	11.0.11.7036-1-context -> 11.12.0.7388-1-context

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