chore: Loss of precision due to Date now amplification (#46344)

Loss of precision due to `Date.now()*1000*1000` (used to record HMR time) has exceeded the safety integer MAX_SAFE_INTEGER.

![image](https://user-images.githubusercontent.com/45198715/221096707-ceaa8fad-1432-428d-8bad-cc83b452127f.png)




## Bug

- [ ] Related issues linked using `fixes #number`
- [ ] Integration tests added
- [ ] Errors have a helpful link attached, see [`contributing.md`](https://github.com/vercel/next.js/blob/canary/contributing.md)

## Feature

- [ ] Implements an existing feature request or RFC. Make sure the feature request has been accepted for implementation before opening a PR.
- [ ] Related issues linked using `fixes #number`
- [ ] [e2e](https://github.com/vercel/next.js/blob/canary/contributing/core/testing.md#writing-tests-for-nextjs) tests added
- [ ] Documentation added
- [ ] Telemetry added. In case of a feature if it's used or not.
- [ ] Errors have a helpful link attached, see [`contributing.md`](https://github.com/vercel/next.js/blob/canary/contributing.md)

## Documentation / Examples

- [ ] Make sure the linting passes by running `pnpm build && pnpm lint`
- [ ] The "examples guidelines" are followed from [our contributing doc](https://github.com/vercel/next.js/blob/canary/contributing/examples/adding-examples.md)

packages/next/src/server/dev/hot-reloader.ts

@@ -334,8 +334,8 @@ export default class HotReloader {
             case 'client-hmr-latency': {
               traceChild = {
                 name: payload.event,
-                startTime: BigInt(payload.startTime * 1000 * 1000),
-                endTime: BigInt(payload.endTime * 1000 * 1000),
+                startTime: BigInt(payload.startTime) * BigInt(1000 * 1000),
+                endTime: BigInt(payload.endTime) * BigInt(1000 * 1000),
               }
               break
             }