Update clippy version and makes all ci tasks parallel.
Update clippy version and makes all ci tasks parallel.

alekseysidorov/exonum,exonum/exonum,exonum/exonum,alekseysidorov/exonum,exonum/exonum,alekseysidorov/exonum,alekseysidorov/exonum,exonum/exonum