Remove parser dependency from ruff-python-ast (#6096)

crates/ruff_python_ast/src/call_path.rs

@@ -1,4 +1,4 @@
-use rustpython_parser::ast::{self, Expr};
+use rustpython_ast::{self as ast, Expr};
 use smallvec::{smallvec, SmallVec};
 
 /// A representation of a qualified name, like `typing.List`.