fix: export maps

[realexyz]

This fixes the following error when updating from @noble/hashes@2.0.0 to @noble/hashes@2.0.1:

Module not found: Package path ./sha3 is not exported from package @noble/hashes (see exports field in @noble/hashes/package.json)
| import { keccak_256 } from "@noble/hashes/sha3";