Silence bare_trait_objects warnings in the script crate

There are many of them, and rustfix is broken:
rust-lang/rust#61963

Author: SimonSapin

components/script/lib.rs

@@ -11,6 +11,7 @@
 #![feature(type_alias_enum_variants)]
 #![deny(unsafe_code)]
 #![allow(non_snake_case)]
+#![allow(bare_trait_objects)] // https://github.com/rust-lang/rust/issues/61963
 #![doc = "The script crate contains all matters DOM."]
 #![plugin(script_plugins)]
 #![cfg_attr(not(feature = "unrooted_must_root_lint"), allow(unknown_lints))]