chore(deps): update renovate/renovate docker tag to v37.309.0

This MR contains the following updates:

Package	Type	Update	Change
renovate/renovate (source)	Kustomization	minor	37.306.1 -> 37.309.0

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Release Notes

renovatebot/renovate (renovate/renovate)

v37.309.0

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Features

• gitlabci: add support for multidoc yaml (#​28521) (20d7611)

Miscellaneous Chores

• deps: update slackapi/slack-github-action action to v1.26.0 (#​28520) (f4d4177)

v37.308.0

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Features

• docker: Long-term cache for Docker Hub tags (#​28489) (569f28b)

v37.307.0

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Features

• manager/gradle: add support for dep matching in lists that are nested in Groovy maps (#​28517) (b4189c8)

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