Add tests for Node Single Executable Applications

[timfish]

Node supports bundling into a Single Executable Application.

We have already broken this before so we should add tests to ensure we don't do it again!

[BYK]

Unfortunately, the only way seems to be actually building a SEA app, running it, and making sure it doesn't crash at startup.

I'm using this build script for now for Spotlight: https://github.com/getsentry/spotlight/blob/main/packages/spotlight/build.js

I also have plans for packaging this as a CLI tool for ease of use. Should take me at most a few weeks.