chore(deps): update docker/metadata-action digest to 85e876b

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
docker/metadata-action	action	digest	5739616 → 85e876b

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Coverage: 82.134%. Remained the same when pulling 76785ec on renovate/docker-metadata-action-digest into ab7f583 on main.

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