update paritydb and remove dev deps on rocksdb (#12641)

* update paritydb and remove dev deps on rocksdb

* feature rocksdb for node testing

* feature decl in node-bench

* revert change to rocksdb inclusion logic

* Update bin/node/bench/Cargo.toml

Co-authored-by: Bastian Köcher <git@kchr.de>

Co-authored-by: parity-processbot <>
Co-authored-by: Bastian Köcher <git@kchr.de>