Modern Algorithms in WebCrypto API specification was updated to rename
the `length` parameter of the `CShakeParams` dictionary to
`outputLength`. We update our implementation accordingly.
Specification update:
41434899e8
WPT update:
0acea989ac
The final step of the "digest" operation of cSHAKE was also updated to
clarify that it outputs a byte sequence, rather than a bit sequence.
This matches our current implementation. No change in our implementation
is needed. The specification text in our code is updated.
Specification update:
5dd19e3a9f
Testing: Pass updated WPT tests.
Signed-off-by: Kingsley Yung <kingsley@kkoyung.dev>