Fix not showing deprecated lints (rust-lang#15407)

As discussed at rust-lang/rust-clippy#15387 revert changes
rust-lang/rust-clippy#15315 to show deprecated.

changelog: none

Author: Alexendoo

util/gh-pages/script.js

@@ -208,6 +208,7 @@ const LEVEL_FILTERS_DEFAULT = {
     allow: true,
     warn: true,
     deny: true,
+    none: true,
 };
 const APPLICABILITIES_FILTER_DEFAULT = {
     Unspecified: true,