* feat(appstack): adds attribution data capabilities from appstack
* fix(appstack): adds missing new manager to xcodeproject
* feat(appstack): updated appstack integration to perform offerings sync
* [skip ci] Update baseline swiftinterface files (#6372)
* fix(appstack): fixing appstack parameter type to match what their sdk is producing.
* fix(appstack): fixed edge case when delegate is nil
* fix(appstack): decouple sync+offerings from AttributionDelegate and guarantee completion fallback
* chore(appstack): cleaning dead code after delegate fixing
---------
Co-authored-by: RevenueCat Git Bot <72824662+RCGitBot@users.noreply.github.com>
