Remove dependency on atty (#3047)

It is no longer maintained and has been replaced by functionality in the
stdlib (std::io::IsTerminal).

packages/cli/Cargo.toml

@@ -32,7 +32,6 @@ html_parser = { workspace = true }
 cargo_metadata = "0.18.1"
 tokio = { version = "1.16.1", features = ["fs", "sync", "rt", "macros", "process", "rt-multi-thread"] }
 tokio-stream = "0.1.15"
-atty = "0.2.14"
 chrono = "0.4.19"
 anyhow = "1"
 hyper = { workspace = true }