[AUTOMATIC] Release/8.2.1

[RCGitBot]

This is an automatic release.

Bugfixes

• Attempt to fix ANRs by moving some tasks during configure to background (#1772) via Cesar de la Vega (@vegaro)
• Use trimmed API key (#1768) via Toni Rico (@tonidero)

  Other Changes

• Remove leftovers ExperimentalPreviewRevenueCatUIPurchasesAPI (#1778) via Cesar de la Vega (@vegaro)
• Update migration docs adding back support for DEFERRED upgrades (#1774) via Toni Rico (@tonidero)
• Add 7.12.0 to CHANGELOG (#1769) via Toni Rico (@tonidero)

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 83.31%. Comparing base (ba5465f) to head (83cb0b2).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1779 +/- ## ======================================= Coverage 83.31% 83.31% ======================================= Files 223 223 Lines 7634 7634 Branches 1072 1072 ======================================= Hits 6360 6360 Misses 853 853 Partials 421 421 ```

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