feat: add sccache to the build pipeline #1463

Job	Run time
build_benchmarks	57s
cargo-deny	15s
Fuzz targets (afl)	2m 6s
Fuzz targets (cargo-fuzz)	1m 6s
cargo-semver-checks	32s
clippy	1m 59s
public_private_dependencies	27s
rustfmt	5s
test_avif_decoding	1m 26s
test_features	34s
test_features (default)	1m 46s
test_other_archs (powerpc-unknown-linux-gnu)	2m 58s
test_toolchains (1.67.1)	2m 34s
test_features (rayon)	28s
test_other_archs (i686-unknown-linux-gnu)	1m 40s
test_toolchains (nightly)	1m 35s
test_features (avif)	1m 7s
test_toolchains (beta)	2m 2s
test_features (bmp)	38s
test_features (dds)	36s
test_features (exr)	45s
test_features (ff)	34s
test_features (gif)	38s
test_features (hdr)	35s
test_features (ico)	41s
test_features (jpeg)	35s
test_features (png)	27s
test_features (pnm)	35s
test_features (qoi)	33s
test_features (tga)	33s
test_features (tiff)	38s
test_features (webp)	44s
	32m 9s

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