Update opera-beta from 66.0.3515.3 to 66.0.3515.7 (#8291)
Update opera-beta from 66.0.3515.3 to 66.0.3515.7 (#8291)


rogeriopradoj/homebrew-versions,rogeriopradoj/homebrew-versions,pkq/homebrew-versions,404NetworkError/homebrew-versions,lantrix/homebrew-versions,pkq/homebrew-versions,caskroom/homebrew-versions,404NetworkError/homebrew-versions,mahori/homebrew-cask-versions,caskroom/homebrew-versions,lantrix/homebrew-versions