fix clippy warning

simulator/generation/table.rs

@@ -41,11 +41,7 @@ impl Arbitrary for Column {
 
 impl Arbitrary for ColumnType {
     fn arbitrary<R: Rng>(rng: &mut R) -> Self {
-        pick(
-            &vec![Self::Integer, Self::Float, Self::Text, Self::Blob],
-            rng,
-        )
-        .to_owned()
+        pick(&[Self::Integer, Self::Float, Self::Text, Self::Blob], rng).to_owned()
     }
 }