dart-lang/core crypto-v3.0.8 on GitHub

Fix the sink returned by Hmac.startChunkedConversion not emitting a digest
when addSlice is called with isLast: true.
Drop unused pkg:typed_data dependency.
Work-around dart-lang/sdk#63747.
Speedup hashing 4 KiB inputs relative to version 3.0.7:

Hash AOT dart2js dart2wasm

md5 1.2x 6.2x 1.4x
sha224/sha256 1.35x 1.15x 1.05x
sha384/sha512 3.1x 6.0x 5.1x

Hash	AOT	dart2js	dart2wasm
`md5`	1.2x	6.2x	1.4x
`sha224`/`sha256`	1.35x	1.15x	1.05x
`sha384`/`sha512`	3.1x	6.0x	5.1x

dart-lang/core crypto-v3.0.8 package:crypto v3.0.8 on GitHub