Pass testflight alpha group as an array to fastlane

[graeme]

Task/Issue URL: https://app.asana.com/0/0/1205539796737793/f

Description:

We now have Alphas being distributed to TestFlight… but they seem to be ignoring the group. I’m trying passing this as an array as that’s what’s expected (was under the impression a string would also work, but examples online seem to show potentially otherwise).

Steps to test this PR:

1. Just check TestFlight to see if the last build from this PR got added to the Latest Alpha Group

Copy Testing:

• Use of correct apostrophes in new copy, ie ’ rather than '

Orientation Testing:

• Portrait
• Landscape

Device Testing:

• iPhone SE (1st Gen)
• iPhone 8
• iPhone X
• iPhone 14 Pro
• iPad

OS Testing:

• iOS 14
• iOS 15
• iOS 16

Theme Testing:

• Light theme
• Dark theme

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Internal references:

Software Engineering Expectations
Technical Design Template

[graeme]

@samsymons This is finally green. I think it would still be useful to merge this as it allows people to generate alphas and send them to specific groups (albeit after a TestFlight external group review has happened). So, while we wouldn’t use that straight away, it’s ready for when it’s needed.

The other option would be to remove any talk of groups altogether, but that’ll be another PR. I’ll let you decide if you think that would be better.

[samsymons]

Looks good!