cargo: Switch to workspace lints (#1299)

* subxt: Remove unstable lints that cause compile warnings

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* cargo: Switch to workspace lints

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* cargo: Fix codec package at root level

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* cargo: Move profiles to the root level

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* Fix lightclient and metadata crates

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* Revert "cargo: Fix codec package at root level"

This reverts commit cdf9e1628d708a972673eb3a9e967b6896edbd73.

* Fix complexity clippy

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* cargo: Remove lints to be replaced by `cargo machete`

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* cargo: Remove unused dependencies (detected by machete)

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* ci: Add machete step

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* cargo: Bump rust version

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* ci: Rename machete step

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

* ci: Rename cargo machete step

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

---------

Signed-off-by: Alexandru Vasile <alexandru.vasile@parity.io>

lightclient/src/client.rs

@@ -1,7 +1,6 @@
 // Copyright 2019-2023 Parity Technologies (UK) Ltd.
 // This file is dual-licensed as Apache-2.0 or GPL-3.0.
 // see LICENSE for license details.
-
 use std::iter;
 
 use super::{
@@ -175,6 +174,7 @@ impl LightClientRpc {
     ///
     /// This method sends a request to the light-client to establish an RPC subscription with the provided parameters.
     /// The parameters are parsed into a valid JSON object in the background.
+    #[allow(clippy::type_complexity)]
     pub fn subscription_request(
         &self,
         method: String,