os/mac/xcode: bump Catalina Xcode versions.
os/mac/xcode: bump Catalina Xcode versions.

Homebrew/brew,reitermarkus/brew,nandub/brew,konqui/brew,MikeMcQuaid/brew,sjackman/homebrew,claui/brew,vitorgalvao/brew,reitermarkus/brew,EricFromCanada/brew,vitorgalvao/brew,mahori/brew,JCount/brew,mahori/brew,konqui/brew,vitorgalvao/brew,JCount/brew,EricFromCanada/brew,claui/brew,sjackman/homebrew,MikeMcQuaid/brew,reitermarkus/brew,konqui/brew,sjackman/homebrew,mahori/brew,MikeMcQuaid/brew,Homebrew/brew,claui/brew,vitorgalvao/brew,reitermarkus/brew,sjackman/homebrew,konqui/brew,Homebrew/brew,EricFromCanada/brew,claui/brew,nandub/brew,JCount/brew,EricFromCanada/brew,MikeMcQuaid/brew,nandub/brew,mahori/brew,JCount/brew,Homebrew/brew,nandub/brew