76343 Added the ability to bring up the date picker dialogs in calendar or text input only mode. (cla: yes, f: material design, framework)

76345 Update PULL_REQUEST_TEMPLATE.md checkbox order (cla: yes, waiting for tree to go green)

76354 Adopt Artifacts.test(localEngine:) in a few tests (cla: yes, team, tool, waiting for tree to go green)

76355 Remove mockito from windows_device_test (cla: yes, team, tool, waiting for tree to go green)

76358 Add mac_ios luci tests. (cla: yes, team)

76381 Cherrypick engine to c53a160d7092ce4ec77f773d439a46881bc4b76d (cla: yes, engine)