Clippyfy (#6341)

* Add clippy config and remove .cargo from gitignore

* first fixes

* Clippyfied

* Add clippy CI job

* comment out rusty-cachier

* minor

* fix ci

* remove DAG from check-dependent-project

* add DAG to clippy

Co-authored-by: alvicsam <alvicsam@gmail.com>

polkadot/node/network/dispute-distribution/src/receiver/mod.rs

@@ -430,7 +430,7 @@ where
 				);
 				return
 			},
-			Some(vote) => (vote.0.session_index(), vote.0.candidate_hash().clone()),
+			Some(vote) => (vote.0.session_index(), *vote.0.candidate_hash()),
 		};
 
 		let (pending_confirmation, confirmation_rx) = oneshot::channel();