Bump env_logger from 0.8.2 to 0.8.3 (#725)

Bumps [env_logger](https://github.com/env-logger-rs/env_logger) from 0.8.2 to 0.8.3.
- [Release notes](https://github.com/env-logger-rs/env_logger/releases)
- [Changelog](https://github.com/env-logger-rs/env_logger/blob/master/CHANGELOG.md)
- [Commits](https://github.com/env-logger-rs/env_logger/compare/v0.8.2...v0.8.3)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

bridges/relays/ethereum/Cargo.toml

@@ -11,7 +11,7 @@ async-std = "1.9.0"
 async-trait = "0.1.42"
 clap = { version = "2.33.3", features = ["yaml"] }
 codec = { package = "parity-scale-codec", version = "2.0.0" }
-env_logger = "0.8.2"
+env_logger = "0.8.3"
 ethabi = { git = "https://github.com/paritytech/ethabi.git", branch = "td-eth-types-11" }
 ethabi-contract = { git = "https://github.com/paritytech/ethabi.git", branch = "td-eth-types-11" }
 ethabi-derive = { git = "https://github.com/paritytech/ethabi.git", branch = "td-eth-types-11" }