lib: warn for clippy::use_self

This was accidentally added to the `allow` lints instead of the `warn`
lints.

src/lib.rs

@@ -27,16 +27,15 @@
 //! | `aws_lc_rs` | Enable use of the aws-lc-rs crate for cryptography. |
 
 #![no_std]
-#![warn(elided_lifetimes_in_paths, unreachable_pub)]
+#![warn(elided_lifetimes_in_paths, unreachable_pub, clippy::use_self)]
 #![deny(missing_docs, clippy::as_conversions)]
 #![allow(
     clippy::len_without_is_empty,
     clippy::new_without_default,
     clippy::single_match,
     clippy::single_match_else,
     clippy::type_complexity,
-    clippy::upper_case_acronyms,
-    clippy::use_self
+    clippy::upper_case_acronyms
 )]
 // Enable documentation for all features on docs.rs
 #![cfg_attr(docsrs, feature(doc_cfg, doc_auto_cfg))]