Bump test from 1.21.3 to 1.21.4 in /device_doctor (#1959)
Bump test from 1.21.3 to 1.21.4 in /device_doctor (#1959)


flutter/cocoon,flutter/cocoon,flutter/cocoon,flutter/cocoon,flutter/cocoon,flutter/cocoon,flutter/cocoon,flutter/cocoon,flutter/cocoon