Fix AVIF limits test #1162

Job	Run time
test_toolchains (1.61.0)	38s
test_features	26s
test_toolchains (nightly)	1m 21s
test_features (default)	1m 23s
test_toolchains (beta)	1m 31s
test_features (gif)	31s
test_features (jpeg)	49s
Fuzz targets (afl)	1m 39s
build_benchmarks	41s
test_features (png)	35s
Fuzz targets (cargo-fuzz)	4m 12s
public_private_dependencies	18s
test_features (tiff)	27s
rustfmt	8s
test_features (ico)	31s
test_features (pnm)	21s
test_avif	1m 2s
test_avif_decoding	1m 55s
test_features (tga)	21s
test_other_archs (powerpc-unknown-linux-gnu, default)	3m 28s
test_features (webp)	43s
test_other_archs (powerpc-unknown-linux-gnu, webp-encoder)	1m 56s
test_features (bmp)	31s
cargo-deny	22s
test_other_archs (i686-unknown-linux-gnu, default)	1m 26s
test_features (hdr)	32s
test_other_archs (i686-unknown-linux-gnu, webp-encoder)	58s
test_features (dxt)	27s
test_features (dds)	22s
verify_msrv	2m 16s
test_features (farbfeld)	25s
clippy	2m 4s
test_features (openexr)	40s
test_features (jpeg_rayon)	31s
test_features (webp-encoder)	55s
	36m 25s

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