[Bug][Regression]: BroadcastChannel TypeError: expected i32

### Problem description

I have a deploy site that uses `BroadcastChannel` and noticed that with a new deploy I get this error:

```
{"type":"error","code":"deploymentFailed","ctx":"The deployment failed: UNCAUGHT_EXCEPTION\n\nTypeError: expected i32\n at ext:deno_broadcast_channel/01_broadcast_channel.js:127:9\n at ext:deno_web/02_timers.js:127:42\n at eventLoopTick (ext:core/01_core.js:168:7)"}
```

### Steps to reproduce

Setup a deploy playground and use this as a test

```
const channel = new BroadcastChannel("test")

setInterval(() => {
channel.postMessage({
value: 42
})
}, 1000)

Deno.serve(async (req: Request) => {
return new Response('foo')
});
```

You'll get an error on deploy:
```
TypeError: expected i32
at ext:deno_broadcast_channel/01_broadcast_channel.js:127:9
at ext:deno_web/02_timers.js:127:42
at eventLoopTick (ext:core/01_core.js:168:7)
```

### Expected behavior

Not to error out when using the broadcast channel

### Environment

_No response_

### Possible solution

_No response_

### Additional context

_No response_

Reproduce the deploy playground with the BroadcastChannel and setInterval example, then start from ext:deno_broadcast_channel/01_broadcast_channel.js:127 and the timer call in ext:deno_web/02_timers.js:127. Trace why the callback produces an unexpected i32 value and verify that the example deploys without the TypeError.

Written by the indexing model from the issue text.