chore(xtask): add changelog check

Author: ErichDonGubler

Cargo.lock

@@ -15,6 +15,7 @@ unexpected_cfgs = { level = "warn", check-cfg = [
 # The dependencies in this config have no transitive dependencies.
 anyhow.workspace = true
 env_logger.workspace = true
+itertools.workspace = true
 regex-lite.workspace = true
 log.workspace = true
 pico-args.workspace = true