[spaceship] Disable media scaling when a trailer is uploaded

[tutipeti]

Checklist

• I've run bundle exec rspec from the root directory to see all new and existing tests pass
• I've followed the fastlane code style and run bundle exec rubocop -a to ensure the code style is valid
• I've read the Contribution Guidelines
• I've updated the documentation if necessary.

Motivation and Context

With the fix from #14028 uploading trailers works, now saving the version with the trailer failed for me. After some try and error I figured out that the issue is that fastlane still tries to turn on scaling for devices even if there is a trailer uploaded (and no screenshot). This fixes #14030

Description

I changed the code for the initial data setup, so that devices that have trailers are also disabling scaling. I also made sure to disable scaling at the end of uploading a new trailer.
I tested this by trying to upload the same video again, and now I could finally save it.

Note: I found several tests for the trailer-related code, but all of it is commented out. Should I add tests for my fix/try to get the existing tests working?

[janpio]

Working tests would indeed be awesome 🥇 👍

[joshdholtz]

@tutipeti If you could add tests that would be 💯 I will also try this out soon here too and try to get this out in the next release

[tutipeti]

@joshdholtz I'll try to get back to this next week, was away for a week of vacation. Have a nice weekend :)

[tutipeti]

@joshdholtz I looked into the tests again, but I kinda got stuck at stubbing the requests.

Can any of you guys give me a hint of how that's supposed to be done? Do you have an example app on App Store Connect that I can use to upload a video, and then just copy the request/response from Charles?

[tutipeti]

Paging @joshdholtz 😩

[janpio]

Uh, that name was always broken?

[janpio]

I am not sure what @joshdholtz expected really, but best take a look at the other tests.
We usually work with out own Apple Developer accounts, there is no shared one we use to generate the requests or similar.

[janpio]

Ups, that should just have been a simple comment. Sorry @tutipeti 🙈

[pedrodelavega]

This is an important fix - without it I can't upload app previews...