use output "formats" for ffmpeg (conf bc break) #1434

Job	Run time
Build Keycloak / build	14s
Build Databox Indexer / build	13s
Build Matomo NGINX / build	27s
Build Matomo PHP / build	16s
Build nodejs-base / build	12s
Build nginx-cache-purge / build	23s
Build nginx-fpm-base / build	21s
Build php-fpm-base / build	24s
Build Report API / build	12s
Build Expose Client / build	17s
Build Databox Client / build	17s
Build Dashboard / build	24s
Build Uploader Client / build	1m 46s
Build Expose API / build	40s
Build Notify API / build	40s
Build Databox API / build	3m 3s
Build Configurator / build	16s
Build Uploader API / build	1m 36s
Setup stack	13m 2s
	24m 43s

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