Upgrading parity-scale-codec to v3 (#10825)

* Upgraded dependencies

* Adapting code to scale v3

* Empty commit to trigger CI

* Triggering CI

* Fixing UI test

* Remove superfluous dev-dep added by #9228

* Cryout for CI

substrate/utils/frame/rpc/support/src/lib.rs

@@ -126,7 +126,7 @@ impl<V: FullCodec> StorageQuery<V> {
 		block_index: Option<Hash>,
 	) -> Result<Option<V>, RpcError> {
 		let opt: Option<StorageData> = state_client.storage(self.key, block_index).await?;
-		opt.map(|encoded| V::decode_all(&encoded.0))
+		opt.map(|encoded| V::decode_all(&mut &encoded.0[..]))
 			.transpose()
 			.map_err(|decode_err| RpcError::Other(Box::new(decode_err)))
 	}