Subcommand output (gradle, adb, etc) is no longer wrapped, and wrapping notices when the terminal column width changes dynamically now.
Fixes#23267.
Fixes#23266.
* Upgrade everything except matcher.
* Roll matcher (and test)
* Adjust tests that depend on flutter:test directly to depend on a shim
* Require use of package:test shim and remove other references to package:test
Some file I/O is piped from OS processes and never completes,
so without havign a timeout on the recording serialzation, we
end up waiting forever on that I/O to complete.
