Make decompression a bit faster

[JJ]

Here

toolkit/packages/cache/src/internal/tar.ts

Lines 70 to 72 in 634dc61

	return ['--use-compress-program', 'zstd -d --long=30']
	case CompressionMethod.ZstdWithoutLong:
	return ['--use-compress-program', 'zstd -d']

You seem to be using the standard option, which gives high compression ration, but less compression speed. I wonder if it's really worth the while to do so, since what's required from a cache is that it decompresses fast when there's a cache hit. Since that's offloaded somewhere else, less compression ration means it might take more to download, but it's still likely that decompression speed trumps downloading speed. Did you try that?

[frank-dspeed]

@JJ good question let me give you some insights on block level deduplication!

Imagin a Filesystem that stores tar files compressed with the same algo they produce near the same blocks not identical but 4k are often enough to say it is a binary douplicate now imagin a platform like github is using such a filesystem

then it makes sense to simply use the most often used option eg: default