chore(deps): update renovate/renovate docker tag to v39.18.3

This MR contains the following updates:

Package	Type	Update	Change
renovate/renovate (source)	image	patch	39.18.2 -> 39.18.3

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Release Notes

renovatebot/renovate (renovate/renovate)

v39.18.3

Compare Source

Bug Fixes

• deps: update ghcr.io/containerbase/sidecar docker tag to v13.0.16 (#​32576) (8c4977f)

Miscellaneous Chores

• deps: update dependency markdownlint-cli2 to v0.15.0 (#​32574) (54996ba)
• deps: update dependency nock to v13.5.6 (#​32571) (27841b4)
• deps: update dependency renovatebot/github-action to v41.0.3 (#​32572) (7697923)
• deps: update ghcr.io/containerbase/devcontainer docker tag to v13.0.16 (#​32575) (e4b6e62)

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