Bump version to 6.0-8 #538

Job	Run time
build_debian / Build FFmpeg (buster, amd64)	51m 43s
build_portable_windows / Build Portable FFmpeg (win64)	52m 23s
build_debian / Build FFmpeg (buster, arm64)	21m 46s
build_portable_linux / Build Portable FFmpeg (amd64)	2h 30m 10s
build_ubuntu / Build FFmpeg (focal, amd64)	53m 48s
build_debian / Build FFmpeg (buster, armhf)	20m 58s
build_portable_linux / Build Portable FFmpeg (arm64)	1h 27m 50s
build_ubuntu / Build FFmpeg (focal, arm64)	10m 44s
build_debian / Build FFmpeg (bullseye, amd64)	1h 14m 34s
build_ubuntu / Build FFmpeg (focal, armhf)	11m 4s
build_debian / Build FFmpeg (bullseye, arm64)	15m 20s
build_ubuntu / Build FFmpeg (jammy, amd64)	48m 6s
build_debian / Build FFmpeg (bullseye, armhf)	17m 57s
build_ubuntu / Build FFmpeg (jammy, arm64)	10m 22s
build_debian / Build FFmpeg (bookworm, amd64)	55m 37s
build_ubuntu / Build FFmpeg (jammy, armhf)	9m 39s
build_debian / Build FFmpeg (bookworm, arm64)	14m 52s
build_ubuntu / Build FFmpeg (lunar, amd64)	56m 9s
build_debian / Build FFmpeg (bookworm, armhf)	13m 15s
build_ubuntu / Build FFmpeg (lunar, arm64)	11m 50s
build_ubuntu / Build FFmpeg (lunar, armhf)	18m 26s
build_ubuntu / Build FFmpeg (mantic, amd64)	49m 47s
build_ubuntu / Build FFmpeg (mantic, arm64)	10m 41s
build_ubuntu / Build FFmpeg (mantic, armhf)	9m 38s
build_portable_windows / Publish Portable Release	0s
build_debian / Publish Release	0s
build_ubuntu / Publish Release	0s
build_portable_linux / Publish Portable Release	0s
	14h 36m 39s

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