Revert "cask/cmd/upgrade_spec: remove more flaky tests."
Revert "cask/cmd/upgrade_spec: remove more flaky tests."

This reverts commit fb0fa419abc750bf33695a396244b9cffbea1554.

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