1.20.2 Cherrypicks (#63591)

* Fix SliverList scrollOffsetCorrection 0 case (#62615)

* Case insensitive check flavor names against Xcode schemes (#61140)

* Address misc time picker design issues (#62803)

* Update to the latest localizations (#63026)

* Removed the inputFormatters from the text input fields used by the Date Pickers (#63461)

* Fix App.framework path in Podfile (#63412)

* Update engine hash to 1.20.2

Co-authored-by: Kate Lovett <katelovett@google.com>
Co-authored-by: Jenn Magder <magder@google.com>
Co-authored-by: Rami <2364772+rami-a@users.noreply.github.com>
Co-authored-by: Shi-Hao Hong <shihaohong@google.com>
Co-authored-by: Darren Austin <darrenaustin@google.com>