feat(deps): update renovate/renovate docker tag to v29.13.4

This MR contains the following updates:

Package	Update	Change
renovate/renovate	minor	29.12.8 -> 29.13.4
renovate/renovate	minor	29.12.7-slim -> 29.13.4-slim

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Release Notes

renovatebot/renovate

v29.13.4

29.13.4 (2021-11-18)

Bug Fixes

• config: compare scopes lowercase (#​12740) (36e8a3e)

v29.13.3

29.13.3 (2021-11-18)

Bug Fixes

• github: handle secondary rate limit (#​12741) (cfc4c48)

v29.13.2

29.13.2 (2021-11-18)

Bug Fixes

• catch prune branch error (693963d)

v29.13.1

29.13.1 (2021-11-18)

Bug Fixes

• datasource: better massage github sourceUrl (#​12737) (01acebd)

v29.13.0

Features

• regex cache (#​12738) (e7b841a)

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