chore(deps): update docker file deps to v16 (release/v4.x)

[renovate-rancher]

This PR contains the following updates:

Package	Type	Update	Change
registry.suse.com/bci/bci-base (source)	final	major	15.7 → 16.1
registry.suse.com/bci/bci-busybox (source)	stage	major	15.7 → 16.1

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[renovate-rancher]

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