Support Electron utility processes

[tmm1]

Problem Statement

electron apps can have utility processes: https://github.com/electron/electron/blob/main/docs/tutorial/process-model.md#the-utility-process

it's not clear whether importing @sentry/electron/main or @sentry/electron/renderer is correct

Solution Brainstorm

a new @sentry/electron/utility would be ideal from a user perspective

perhaps for now using @sentry/node makes the most sense?

[timfish]

#991 has been published as part of v5.6.0 of the Electron SDK.

Let us know how it works for you!