Ignore buggy clippy::needless_borrow lint

```text
error: this expression borrows a value the compiler would automatically borrow
  --> futures-util/src/future/poll_fn.rs:56:9
   |
56 |         (&mut self.f)(cx)
   |         ^^^^^^^^^^^^^ help: change this to: `self.f`
   |
   = note: `-D clippy::needless-borrow` implied by `-D warnings`
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow

error: this expression borrows a value the compiler would automatically borrow
  --> futures-util/src/stream/repeat_with.rs:23:26
   |
23 |         Poll::Ready(Some((&mut self.repeater)()))
   |                          ^^^^^^^^^^^^^^^^^^^^ help: change this to: `self.repeater`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow

error: this expression borrows a value the compiler would automatically borrow
  --> futures-util/src/stream/poll_fn.rs:55:9
   |
55 |         (&mut self.f)(cx)
   |         ^^^^^^^^^^^^^ help: change this to: `self.f`
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_borrow
```

Author: taiki-e

futures-util/src/lib.rs

@@ -19,6 +19,7 @@
 ))]
 #![cfg_attr(docsrs, feature(doc_cfg))]
 #![allow(clippy::non_send_fields_in_send_ty)]
+#![allow(clippy::needless_borrow)] // https://github.com/rust-lang/futures-rs/pull/2558#issuecomment-1030745203
 
 #[cfg(all(feature = "bilock", not(feature = "unstable")))]
 compile_error!("The `bilock` feature requires the `unstable` feature as an explicit opt-in to unstable features");

futures/tests/ready_queue.rs

@@ -1,3 +1,5 @@
+#![allow(clippy::needless_borrow)] // https://github.com/rust-lang/rust-clippy/issues/8367
+
 use futures::channel::oneshot;
 use futures::executor::{block_on, block_on_stream};
 use futures::future;