Update lints for rename of intra_doc_link_resolution_failure

This lint was renamed to broken_intra_doc_links as part of feature
stabilization.

The lint was renamed in rust-lang/rust#74926

Author: lopopolo

.github/workflows/rustdoc.yaml

@@ -27,7 +27,6 @@ jobs:
           toolchain: nightly
           profile: minimal
           override: true
-          components: rustfmt, rust-src
 
       - name: Build Documentation
         run: cargo doc

src/lib.rs

@@ -105,7 +105,8 @@ rewritten by Vladimir Makarov <vmakarov@redhat.com>.  */
 #![warn(clippy::cargo)]
 #![allow(clippy::cast_lossless)]
 #![allow(clippy::cast_possible_truncation)]
-#![warn(missing_docs, intra_doc_link_resolution_failure)]
+#![allow(unknown_lints)]
+#![warn(missing_docs, broken_intra_doc_links)]
 #![warn(missing_debug_implementations)]
 #![warn(rust_2018_idioms)]
 #![warn(unused_qualifications)]