Fix iOS Divvun Keyboard release builds

[dylanhand]

It looks like this might be a victim of altool as well:

https://github.com/divvun/divvun-keyboard/runs/24188109945

[dylanhand]

This is fixed: https://github.com/divvun/divvun-keyboard/runs/24425741999

The problem was that version 3.7.0 had previously been used. Once a version has been used and App Store Connect is aware of it, it's not possible to use a version that is lower than the highest previously used version.

[snomos]

Thanks for fixing it, and thanks for the explanation. Very good to know. I assume we can close this issue then.