88116 [flutter_tool] Fix DesktopLogReader to capture all output (tool, cla: yes, waiting for tree to go green)

88117 Add platform tags to devicelab tests (cla: yes, waiting for tree to go green)

88121 Roll Engine from 06da8b0c078d to 8bf3cc67e587 (6 revisions) (cla: yes, waiting for tree to go green)

88122 Makes PlatformInformationProvider aware of the browser default route … (framework, cla: yes, f: routes, waiting for tree to go green)

88123 Bump snippets to 0.2.3, fix redundant global activate in docs.sh (team, cla: yes, waiting for tree to go green)