docs: Updated scylla dep version

Author: wprzytula

docs/source/quickstart/create-project.md

@@ -8,7 +8,7 @@ cargo new myproject
 In `Cargo.toml` add useful dependencies:
 ```toml
 [dependencies]
-scylla = "0.4"
+scylla = "0.8"
 tokio = { version = "1.12", features = ["full"] }
 futures = "0.3.6"
 uuid = "1.0"