chore(deps): update renovate/renovate docker tag to v38.39.6

This MR contains the following updates:

Package	Type	Update	Change
renovate/renovate (source)	image	patch	38.39.4 -> 38.39.6

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Release Notes

renovatebot/renovate (renovate/renovate)

v38.39.6

Compare Source

Bug Fixes

• deps: update ghcr.io/renovatebot/base-image docker tag to v7.15.7 (#​30858) (2e78c2c)

Documentation

• workaround nested list format conflict (#​30857) (1408dd1)

v38.39.5

Compare Source

Bug Fixes

• deps: update ghcr.io/containerbase/sidecar docker tag to v11.11.5 (#​30856) (0c85a8c)

Miscellaneous Chores

• deps: update ghcr.io/containerbase/devcontainer docker tag to v11.11.5 (#​30855) (319fbe4)

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