Update Cargo.toml

Author: moh-eulith

client/db/Cargo.toml

@@ -16,7 +16,7 @@ targets = ["x86_64-unknown-linux-gnu"]
 parking_lot = "0.12.0"
 log = "0.4.8"
 kvdb = "0.11.0"
-kvdb-rocksdb = { version = "0.15.1", optional = true }
+kvdb-rocksdb = { version = "0.15.2", optional = true }
 kvdb-memorydb = "0.11.0"
 linked-hash-map = "0.5.4"
 hash-db = "0.15.2"