71050 Add dartpad sample for AnimatedPadding (adopt a widget, cla: yes, d: api docs, d: examples, documentation, framework, waiting for tree to go green)

71093 AdoptAWidget: ColorFiltered (adopt a widget, cla: yes, d: api docs, d: examples, documentation, framework, waiting for tree to go green)

71096 Revert “Migrate template to Gradle 6.7 and AGP 4.1.0” (a: accessibility, cla: yes, d: examples, team, tool)

71174 AdoptAWidget: PageView (cla: yes, d: api docs, d: examples, documentation, framework)

71446 Relands: Migrate template to Gradle 6.7 and AGP 4.1.0 (a: accessibility, cla: yes, d: examples, team, tool)