docs: fix code example (#10355)

Author: cpojer

guide/api-hmr.md

@@ -129,14 +129,14 @@ A self-accepting module may realize during runtime that it can't handle a HMR up
 
 Note that you should always call `import.meta.hot.accept` even if you plan to call `invalidate` immediately afterwards, or else the HMR client won't listen for future changes to the self-accepting module. To communicate your intent clearly, we recommend calling `invalidate` within the `accept` callback like so:
 
-    ```ts
-    import.meta.hot.accept(module => {
-      // You may use the new module instance to decide whether to invalidate.
-      if (cannotHandleUpdate(module)) {
-        import.meta.hot.invalidate()
-      }
-    })
-    ```
+```js
+import.meta.hot.accept((module) => {
+  // You may use the new module instance to decide whether to invalidate.
+  if (cannotHandleUpdate(module)) {
+    import.meta.hot.invalidate()
+  }
+})
+```
 
 ## `hot.on(event, cb)`