test: build cfg at the end of test for the sake of completeness.

Author: rzvxa

crates/oxc_cfg/tests/builder.rs

@@ -33,4 +33,6 @@ fn labeled_statement_with_multiple_loops_continue_and_break() {
 
     // labeled block end
     cfg.ctx(A).mark_break(labeled).resolve();
+
+    cfg.build();
 }