Update maven Docker tag to v3.9.6

This MR contains the following updates:

Package	Type	Update	Change
maven	ironbank-docker	patch	3.9.5-amazoncorretto-17 -> 3.9.6-amazoncorretto-17
maven		patch	3.9.5-amazoncorretto-17 -> 3.9.6-amazoncorretto-17
maven	stage	patch	3.9.5-amazoncorretto-17 -> 3.9.6-amazoncorretto-17

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