add: `ffmpeg4.4` #8789

Job	Run time
test-on-debian (debian:stable, master)	1m 7s
test-on-ubuntu (ubuntu:latest, master)	1m 4s
test-on-debian (debian:stable, develop)	9m 39s
test-on-ubuntu (ubuntu:latest, develop)	9m 7s
test-on-debian (debian:testing, master)	1m 14s
test-on-ubuntu (ubuntu:devel, master)	1m 18s
test-on-debian (debian:testing, develop)	10m 18s
test-on-ubuntu (ubuntu:devel, develop)	10m 1s
test-on-ubuntu (ubuntu:rolling, master)	1m 51s
test-on-debian (debian:unstable, master)	1m 25s
test-on-ubuntu (ubuntu:rolling, develop)	11m 39s
test-on-debian (debian:unstable, develop)	8m 47s
	1h 7m 30s

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