Bump tokio-util from 0.6.9 to 0.7.2 in /src/agent

Bumps [tokio-util](https://github.com/tokio-rs/tokio) from 0.6.9 to 0.7.2.
- [Release notes](https://github.com/tokio-rs/tokio/releases)
- [Commits](tokio-rs/tokio@tokio-util-0.6.9...tokio-util-0.7.2)

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

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

src/agent/onefuzz-task/Cargo.toml

@@ -40,7 +40,7 @@ storage-queue = { path = "../storage-queue" }
 tempfile = "3.2"
 thiserror = "1.0"
 tokio = { version = "1.15", features = ["full"] }
-tokio-util = { version = "0.6", features = ["full"] }
+tokio-util = { version = "0.7", features = ["full"] }
 tokio-stream = "0.1"
 tui = { version = "0.16", default-features = false, features = ['crossterm'] }
 url = { version = "2.2", features = ["serde"] }

src/agent/onefuzz/Cargo.toml

@@ -29,7 +29,7 @@ rand = "0.8"
 serde_derive = "1.0"
 tokio = { version = "1.15", features = ["full"] }
 tokio-stream = { version = "0.1", features = ["fs", "time", "tokio-util"] }
-tokio-util = { version = "0.6", features = ["full"] }
+tokio-util = { version = "0.7", features = ["full"] }
 uuid = { version = "0.8", features = ["serde", "v4"] }
 urlparse = "0.7"
 url-escape = "0.1.0"