Add BufRead + Seek bound on many decoders #1263

Job	Run time
cargo-deny	24s
build_benchmarks	54s
Fuzz targets (afl)	3m 20s
Fuzz targets (cargo-fuzz)	6m 25s
clippy	1m 34s
public_private_dependencies	27s
rustfmt	11s
test_avif_decoding	1m 22s
test_other_archs (powerpc-unknown-linux-gnu)	3m 51s
test_features	29s
test_other_archs (i686-unknown-linux-gnu)	1m 53s
test_toolchains (1.67.1)	34s
test_features (default)	2m 14s
test_toolchains (nightly)	2m 4s
test_features (rayon)	37s
test_toolchains (beta)	1m 55s
test_features (avif)	1m 2s
test_features (bmp)	46s
test_features (dds)	31s
test_features (exr)	46s
test_features (ff)	40s
test_features (gif)	51s
test_features (hdr)	24s
test_features (ico)	29s
test_features (jpeg)	25s
test_features (png)	38s
test_features (pnm)	53s
test_features (qoi)	35s
test_features (tga)	23s
test_features (tiff)	29s
test_features (webp)	30s
	37m 36s

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