Replace transcription.score usage by transcription.confidence
Refs https://gitlab.com/arkindex/backend/-/issues/763
Do not bother to support both versions at the same time, next base-worker release must NOT reference score anymore at all.
Refs https://gitlab.com/arkindex/backend/-/issues/763
Do not bother to support both versions at the same time, next base-worker release must NOT reference score anymore at all.