Update merge confidence extends to `mergeConfidence:all-badges`

The merge confidence extends is

https://gitlab.com/renovate-bot/renovate-runner/-/blob/d3575d8858b164fb0967831671d00db30a4254a4/templates/renovate.gitlab-ci.yml#L10

github>whitesource/merge-confidence:beta

but it seems that this causes DEBUG: Config migration necessary and it is migrated to mergeConfidence:all-badges. We should update it to the post-migration value.

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