Update rust/ql/test/query-tests/unusedentities/unreachable.rs

Co-authored-by: Geoffrey White <[email protected]>

Author: hvitved

rust/ql/test/query-tests/unusedentities/unreachable.rs

@@ -183,7 +183,7 @@ fn unreachable_loop() {
 }
 
 fn unreachable_paren() {
-    let _ = (1);
+    let _ = (((1)));
 }
 
 fn unreachable_let_1() {