homebrew: install Cask packages before Homebrew packages
homebrew: install Cask packages before Homebrew packages

Because Maven and Scala depend on Java, it should be instatlled in
advance.

Signed-off-by: Soshi Katsuta <37be56e1b0b2d8665f687408a43d44ca133648fd@gmail.com>

skatsuta/ansible-osx,skatsuta/ansible-macos