build(deps): update ethabi requirement in /pallets/creditcoin

Updates the requirements on [ethabi](https://github.com/rust-ethereum/ethabi) to permit the latest version.
- [Release notes](https://github.com/rust-ethereum/ethabi/releases)
- [Changelog](https://github.com/rust-ethereum/ethabi/blob/master/CHANGELOG.md)
- [Commits](rust-ethereum/ethabi@v16.0.0...v17.1.0)

---
updated-dependencies:
- dependency-name: ethabi
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pallets/creditcoin/Cargo.toml

@@ -17,7 +17,7 @@ targets = ['x86_64-unknown-linux-gnu']
 [dependencies]
 log = "0.4.17"
 extend = "1.1.2"
-ethabi = { version = "16.0.0", features = ["rlp"], default-features = false }
+ethabi = { version = "17.1.0", features = ["rlp"], default-features = false }
 ethereum-types = { version = "0.12.1", features = [
     "rlp",
     "serialize",