[deliver] Add Watch Ultra screen size

[xiii111]

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 see several green ci/circleci builds in the "All checks have passed" section of my PR (connect CircleCI to GitHub if not)
• I've read the Contribution Guidelines
• I've updated the documentation if necessary.

Motivation and Context

Resolves #21086

Uploading an Apple Watch Ultra screenshot fails with invalid size. The size is detailed in https://help.apple.com/app-store-connect/#/devd274dd925, however.

🚫 Error: ./fastlane/screenshots/ja/0_APP_WATCH_ULTRA_0.png - Invalid screen size (Actual size is 410x502. See the specifications to fix https://help.apple.com/app-store-connect/#/devd274dd925)

This is the same changes as #19782.

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[xiii111]

I signed the CLA.

[xiii111]

@joshdholtz This is the same changes as #19782. Please check again 🙏

[wrutkowski]

Could we get this merged, please?

[xiii111]

We have Deliver fails to upload Apple Watch Ultra screenshots. please check this 🙏

[tkafka]

Hello, is there any way to get this through? Many people including myself are now using Ultra as a default screenshot size for the watch.

[tkafka]

This seems pretty obvious, I'd approve

[mollyIV]

Hey @xiii111 👋

Sorry for a late review. That looks good to me.

Thank you for the contribution 💯

[xiii111]

@mollyIV Thank you so much!