Update free_functions.rs #1764

Job	Run time
cargo-deny	21s
build_benchmarks	44s
Fuzz targets (cargo-fuzz)	59s
Fuzz targets (afl)	2m 12s
cargo-semver-checks	23s
clippy	2m 51s
public_private_dependencies	23s
rustfmt	6s
test_avif_decoding	1m 31s
test_features	35s
test_other_archs (powerpc-unknown-linux-gnu)	2m 13s
test_toolchains (1.70.0)	29s
test_other_archs (i686-unknown-linux-gnu)	1m 10s
test_toolchains (nightly)	57s
test_features (default)	1m 16s
test_toolchains (beta)	1m 2s
test_features (rayon)	29s
test_features (avif)	51s
test_features (bmp)	56s
test_features (dds)	28s
test_features (exr)	44s
test_features (ff)	25s
test_features (gif)	52s
test_features (hdr)	28s
test_features (ico)	45s
test_features (jpeg)	27s
test_features (png)	41s
test_features (pnm)	25s
test_features (qoi)	35s
test_features (tga)	50s
test_features (tiff)	45s
test_features (webp)	45s
	27m 38s

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