Use #[expect(lint)] over #[allow(lint)] where possible (#17822)

crates/ruff_python_ast/src/nodes.rs

@@ -352,7 +352,7 @@ impl Deref for FStringLiteralElement {
 /// Transforms a value prior to formatting it.
 #[derive(Copy, Clone, Debug, Hash, PartialEq, Eq, is_macro::Is)]
 #[repr(i8)]
-#[allow(clippy::cast_possible_wrap)]
+#[expect(clippy::cast_possible_wrap)]
 pub enum ConversionFlag {
     /// No conversion
     None = -1, // CPython uses -1