Add AVIF plugin (using libavif) #22

Job	Run time
macOS x86_64	1h 2m 36s
macOS arm64	21m 41s
sdist	26s
Windows x86	4m 38s
manylinux2014 and musllinux x86_64	1h 10m 9s
aarch64 pp39 manylinux2014	1h 30m 25s
Windows AMD64	9m 32s
manylinux_2_28 x86_64	40m 23s
aarch64 pp39 manylinux_2_28	1h 32m 7s
Windows ARM64	11m 14s
aarch64 pp310 manylinux2014	1h 32m 44s
aarch64 pp310 manylinux_2_28	1h 32m 54s
aarch64 cp3{9,10,11} manylinux2014	1h 33m 0s
aarch64 cp3{9,10,11} manylinux_2_28	1h 33m 7s
aarch64 cp3{9,10,11} musllinux	1h 32m 53s
aarch64 cp3{12,13} manylinux2014	1h 33m 13s
aarch64 cp3{12,13} manylinux_2_28	1h 33m 11s
aarch64 cp3{12,13} musllinux	1h 33m 2s
Upload wheels to scientific-python-nightly-wheels	0s
Upload release to PyPI	1s
	19h 7m 16s

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