chore(docker): update docker digests

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
owncloud/ubuntu	final	digest	211a3ea -> 99f6502
owncloud/ubuntu	final	digest	1d63735 -> 3dd3cac
owncloud/ubuntu	final	digest	c0a606d -> f5ffb71
owncloud/ubuntu	final	digest	a5c8666 -> 283245d
owncloud/ubuntu	final	digest	172730a -> cfe153f

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