chore(docker): update docker digests

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
owncloud/ubuntu	final	digest	57cde46 -> 8c33b9a
owncloud/ubuntu	final	digest	214b168 -> 0d2a616
owncloud/ubuntu	final	digest	c71b78b -> 9ebc19b
owncloud/ubuntu	final	digest	bca9dff -> 89c24d4
owncloud/ubuntu	final	digest	1bf374c -> c1f2486

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