chore(deps): update renovate/renovate docker tag to v38.57.0

This MR contains the following updates:

Package	Type	Update	Change
renovate/renovate (source)	image	minor	38.56.3 -> 38.57.0

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Release Notes

renovatebot/renovate (renovate/renovate)

v38.57.0

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Features

• datasource: add debian datasource (#​30071) (c3958c9)
• deps: update ghcr.io/renovatebot/base-image docker tag to v7.19.0 (#​31085) (8db60f6)

v38.56.4

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Bug Fixes

• package-rules: migrate matchers with string values (#​31083) (ded9a7b)

Documentation

• code of conduct: rewrite (#​31077) (0bc5cc1)

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This MR has been generated by Renovate Bot.