Bump env_logger from 0.9.0 to 0.10.0 in /src/proxy-manager

Bumps [env_logger](https://github.com/rust-cli/env_logger) from 0.9.0 to 0.10.0.
- [Release notes](https://github.com/rust-cli/env_logger/releases)
- [Changelog](https://github.com/rust-cli/env_logger/blob/main/CHANGELOG.md)
- [Commits](rust-cli/env_logger@v0.9.0...v0.10.0)

---
updated-dependencies:
- dependency-name: env_logger
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

src/proxy-manager/Cargo.lock

@@ -9,7 +9,7 @@ license = "MIT"
 [dependencies]
 anyhow = "1.0"
 clap = "2.34"
-env_logger = "0.9"
+env_logger = "0.10"
 futures = "0.3"
 reqwest = { version = "0.11", features = ["json", "stream", "native-tls-vendored"], default-features = false }
 serde = { version = "1.0", features = ["derive"] }