63591 1.20.2 Cherrypicks (a: internationalization, cla: yes, engine, f: material design, framework, team, tool, work in progress; do not review)

63593 Pin goldctl (cla: yes, team, team: infra, waiting for tree to go green)

63594 Add win (cla: yes, team, waiting for tree to go green)

63598 Add arguments for required parameters. (cla: yes, framework, team)

63605 remove fuchsia_entrypoint_shim directory (cla: yes, team, tool, waiting for tree to go green)

63608 Revert: Update prepare_package.dart to use the process_runner package instead having duplicate code. #62710 (cla: yes, team)