chore(deps): update quay.io/skopeo/stable docker tag to v1.16

This MR contains the following updates:

Package	Type	Update	Change
quay.io/skopeo/stable (source)	image-name	minor	v1.15 -> v1.16

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This MR has been generated by Renovate Bot.

assigned to @larsl-net

mentioned in issue #1

mentioned in commit 079c923e

merged