build(deps): bump keccak from 0.2.0-rc.0 to 0.2.0-rc.1

Bumps [keccak](https://github.com/RustCrypto/sponges) from 0.2.0-rc.0 to 0.2.0-rc.1.
- [Commits](RustCrypto/sponges@keccak-v0.2.0-rc.0...keccak-v0.2.0-rc.1)

---
updated-dependencies:
- dependency-name: keccak
  dependency-version: 0.2.0-rc.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Cargo.lock

@@ -18,7 +18,7 @@ categories = ["cryptography", "no-std"]
 
 [dependencies]
 digest = "0.11.0-rc.7"
-keccak = "0.2.0-rc.0"
+keccak = "0.2.0-rc.1"
 
 [dev-dependencies]
 digest = { version = "0.11.0-rc.7", features = ["dev"] }