55243 Roll engine ae311ca4da5a..fa8b9a53807e (3 commits) (cla: yes, waiting for tree to go green)

55244 [flutter_tools] remove PackageMap and finish PackageConfig migration (cla: yes, tool)

55246 Handle surrogate pairs in RenderEditable (cla: yes, framework)

55248 Roll engine fa8b9a53807e..b6bb7e796afa (1 commits) (cla: yes, waiting for tree to go green)

55250 flutter_tools: Prefer using .of() over .from() when possible (cla: yes, tool)

55253 Flutter 1.17.0.dev.3.2 cherrypicks (cla: yes, engine, framework, team, tool)