style: fix a clippy error where an unnecessary continue was used in the jsonc parser in app.rs

Author: fattila16

src/nixpacks/app.rs

@@ -217,7 +217,7 @@ impl App {
                                 break;
                             }
                             None => break,
-                            _ => continue,
+                            _ => {}
                         }
                     }
                 }