[AUTOMATIC] Release/4.43.1

This is an automatic release.

Bump fastlane from 2.220.0 to 2.221.0 (#3971) via dependabot[bot] (@dependabot[bot])
Bump rexml from 3.2.6 to 3.2.8 (#3907) via dependabot[bot] (@dependabot[bot])
Bump fastlane-plugin-revenuecat_internal from 8ec0072 to 5f55466 (#3938) via dependabot[bot] (@dependabot[bot])
Other Changes
Bring back offline integration tests on M1 (#3976) via Toni Rico (@tonidero)
Fix Carthage (#3978) via James Borthwick (@jamesrb1)
Revert "Run offline backend integration tests on M1 machines (#3961)" (#3974) via Toni Rico (@tonidero)
Run offline backend integration tests on M1 machines (#3961) via Toni Rico (@tonidero)
Xcode project with RevenueCatUI + Tests (#3960) via James Borthwick (@jamesrb1)
Clone to spm using fastlane (#3926) via James Borthwick (@jamesrb1)
finishTransactions/ObserverMode -> PurchasesAreCompletedBy (#3947) via James Borthwick (@jamesrb1)
Switch tests for iOS 12 and 13 to M1 (#3958) via Toni Rico (@tonidero)
Fix prepare next version job (#3939) via Toni Rico (@tonidero)

RevenueCat / purchases-ios