45579 Add integration test for transitive plugin dependencies (cla: yes, team, waiting for tree to go green)

45580 SliverOffstage Fix (cla: yes, f: scrolling, framework, waiting for tree to go green)

45582 SliverVisibility (cla: yes, f: scrolling, framework, severe: new feature, waiting for tree to go green)

45586 Roll engine 298e053bdc04..05f8c8b24b92 (5 commits) (autoroller: commit, cla: yes)

45588 Re-land “Add option to delay rendering the first frame (#45135)” (a: tests, cla: yes, framework, waiting for tree to go green)