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/primitives/api/proc-macro/src/decl_runtime_apis.rs

@@ -181,7 +181,7 @@ fn generate_native_call_generators(decl: &ItemTrait) -> Result<TokenStream> {
 		{
 			<R as #crate_::DecodeLimit>::decode_with_depth_limit(
 				#crate_::MAX_EXTRINSIC_DEPTH,
-				&#crate_::Encode::encode(input)[..],
+				&mut &#crate_::Encode::encode(input)[..],
 			).map_err(map_error)
 		}
 	));

substrate/primitives/api/proc-macro/src/impl_runtime_apis.rs

@@ -86,7 +86,7 @@ fn generate_impl_call(
 		let (#( #pnames ),*) : ( #( #ptypes ),* ) =
 			match #c::DecodeLimit::decode_all_with_depth_limit(
 				#c::MAX_EXTRINSIC_DEPTH,
-				&#input,
+				&mut #input,
 			) {
 				Ok(res) => res,
 				Err(e) => panic!("Bad input data provided to {}: {}", #fn_name_str, e),