remove unused shell_escape dep

Author: klensy

Cargo.lock

@@ -21,7 +21,6 @@ doctest = false # and no doc tests
 getrandom = { version = "0.2", features = ["std"] }
 env_logger = "0.9"
 log = "0.4"
-shell-escape = "0.1.4"
 rand = "0.8"
 smallvec = "1.7"