add timeout of one second to enqueue non-retry send call

[texonidas]

What does this PR do? Fix a breaking bug from the RIP JSONv3 commit.

Are there breaking changes in this PR? No, there's fixes.

Testing

Any background context you want to provide? No

Is there parity with the server-side/android/iOS integration components (if applicable)?

Does this require a new integration setting? If so, please explain how the new setting works

Links to helpful docs and other external resources

[texonidas]

https://github.com/segmentio/analytics.js-integrations/issues/562