test(fuzz): cover other image types #1623

Job	Run time
build_benchmarks	45s
Fuzz targets (cargo-fuzz)	47s
cargo-deny	20s
Fuzz targets (afl)	2m 11s
cargo-semver-checks	24s
clippy	2m 1s
public_private_dependencies	24s
rustfmt	4s
test_avif_decoding	1m 21s
test_features	31s
test_other_archs (powerpc-unknown-linux-gnu)	2m 22s
test_toolchains (1.67.1)	37s
test_features (default)	1m 52s
test_other_archs (i686-unknown-linux-gnu)	1m 14s
test_toolchains (nightly)	1m 46s
test_features (rayon)	27s
test_toolchains (beta)	1m 59s
test_features (avif)	59s
test_features (bmp)	20s
test_features (dds)	22s
test_features (exr)	38s
test_features (ff)	17s
test_features (gif)	27s
test_features (hdr)	17s
test_features (ico)	30s
test_features (jpeg)	27s
test_features (png)	29s
test_features (pnm)	19s
test_features (qoi)	25s
test_features (tga)	24s
test_features (tiff)	30s
test_features (webp)	25s
	25m 54s

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