docs: replace auto_doc_cfg (hyperium#237)

Author: seanmonstar

.github/workflows/CI.yml

@@ -119,4 +119,4 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@nightly
-      - run: cargo rustdoc -- --cfg docsrs -D rustdoc::broken-intra-doc-links
+      - run: cargo rustdoc -- --cfg docsrs -D rustdoc::broken_intra_doc_links

src/lib.rs

@@ -1,5 +1,5 @@
 #![deny(missing_docs)]
-#![cfg_attr(docsrs, feature(doc_auto_cfg, doc_cfg))]
+#![cfg_attr(docsrs, feature(doc_cfg))]
 
 //! Utilities for working with hyper.
 //!