chore(deps): update renovate/renovate docker tag to v39.18.1

This MR contains the following updates:

Package	Type	Update	Change
renovate/renovate (source)	image	minor	39.17.1 -> 39.18.1

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Release Notes

renovatebot/renovate (renovate/renovate)

v39.18.1

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Bug Fixes

• git: fix gpg commit signing (#​32483) (#​32543) (9b45b6b)
• Handle extractVersion with release post-processing (#​32540) (cb7c10b)

v39.18.0

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Features

• manager/conan: Conan 1 package name compatibility (#​32425) (dbfa6b2)

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