chore: bump cli-engine to 0.3.4 for non-interactive scope step-up (#73)

cli-engine 0.3.4 makes OAuth scope step-up fire for under-scoped tokens in
non-interactive sessions (godaddy/cli-engine#34). Before this, a command run
without a TTY (agent harness, piped stdio) that held a token missing a
required scope hard-errored with "missing required scope(s)" instead of
launching the OAuth flow, while the same command auto-authenticated once the
token was cleared.

With the bump, `gddy domain suggest` / `domain purchase` and any scoped
command now step up to acquire the missing scope regardless of interactivity.

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>

Author: jpage-godaddy

rust/Cargo.lock

@@ -16,7 +16,7 @@ path = "src/main.rs"
 async-trait = "0.1"
 chrono = { version = "0.4", default-features = false, features = ["clock", "serde"] }
 clap = { version = "4.5", features = ["std", "string"] }
-cli-engine = { features = ["pkce-auth"], version = "0.3.0" }
+cli-engine = { features = ["pkce-auth"], version = "0.3.4" }
 dirs = "6"
 domains-client = { path = "domains-client" }
 fancy-regex = "0.14"