build(deps): bump tokio from 1.37.0 to 1.38.0

Bumps [tokio](https://github.com/tokio-rs/tokio) from 1.37.0 to 1.38.0.
- [Release notes](https://github.com/tokio-rs/tokio/releases)
- [Commits](tokio-rs/tokio@tokio-1.37.0...tokio-1.38.0)

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

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

Author: dependabot[bot]

Cargo.lock

@@ -43,7 +43,7 @@ sha2 = { version = "^0.10.8", default-features = false }
 signature = {version = "2.0.0", default-features = false }
 spki = { version = "0.6", default-features = false }
 testaso = { version = "0.1", default-features = false }
-tokio = { version = "^1.37.0", default-features = false }
+tokio = { version = "^1.38.0", default-features = false }
 toml = { version = "0.7.8", default-features = false }
 tower = { version = "^0.4.11", default-features = false }
 tower-http = { version = "^0.3.5", default-features = false }