Disable ui test on miri

tests/compiletest.rs

@@ -1,6 +1,7 @@
 #![deny(clippy::all, clippy::pedantic)]
 
 #[rustversion::attr(not(nightly), ignore)]
+#[cfg_attr(miri, ignore)]
 #[test]
 fn ui() {
     let t = trybuild::TestCases::new();