update most of the dependencies (#1946)

* update tiny-keccak to 0.2

* update deps except bitvec and shared_memory

* fix some warning after futures upgrade

* remove useless package rename caused by bug in cargo-upgrade

* revert parity-util-mem *

* remove unused import

* cargo update

* remove all renames on parity-scale-codec

* remove the leftovers

* remove unused dep

polkadot/statement-table/src/generic.rs

@@ -30,7 +30,7 @@ use std::fmt::Debug;
 
 use primitives::v1::{ValidityAttestation as PrimitiveValidityAttestation, ValidatorSignature};
 
-use codec::{Encode, Decode};
+use parity_scale_codec::{Encode, Decode};
 
 /// Context for the statement table.
 pub trait Context {