message: Update ast::datatype enum to use SCREAMING_SNAKE_CASE
diff: @@ -2,6 +2,7 @@ use serde::{Deserialize, Serialize};
  use strum_macros::Display;
  #[derive(Debug, Clone, PartialEq, Eq, Hash, Serialize, Deserialize, Display)]
  +#[strum(serialize_all = "SCREAMING_SNAKE_CASE")]
  pub enum DataType {
  Boolean,
  Int8,
  