Update gcr.io/kasten-images/kanister Docker tag to v6.0.10

This MR contains the following updates:

Package	Type	Update	Change
gcr.io/kasten-images/kanister	ironbank-docker	patch	6.0.9 -> 6.0.10
gcr.io/kasten-images/kanister	stage	patch	6.0.9 -> 6.0.10

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