[TRI-2048] Better handle `fetch` throwing errors in our ApiClient

[ericallam]

As you can see in the code below, we aren't handling any thrown errors by fetch:

https://github.com/triggerdotdev/trigger.dev/blob/5d78bba5e3fda2668bbd1d3d67f8ba4c4479c559/packages/trigger-sdk/src/apiClient.ts#L888

This can lead to issues when the fetch times out and throws an error. We should fix this and also investigate which other errors can be thrown and handle those with retries (if it makes sense).

_TRI-2048