Update cliipy arithmetic_side_effects lint for new String path

Author: zachs18

src/tools/clippy/clippy_lints/src/operators/arithmetic_side_effects.rs

@@ -33,7 +33,7 @@ impl ArithmeticSideEffects {
         allowed_binary.extend([
             ("f32", FxHashSet::from_iter(["f32"])),
             ("f64", FxHashSet::from_iter(["f64"])),
-            ("std::string::String", FxHashSet::from_iter(["str"])),
+            ("std::string::string::String", FxHashSet::from_iter(["str"])),
         ]);
         for (lhs, rhs) in &conf.arithmetic_side_effects_allowed_binary {
             allowed_binary.entry(lhs).or_default().insert(rhs);