Allow `toggl-track` to be a pre-release.
Allow `toggl-track` to be a pre-release.

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