Update safari-technology-preview from 78,041-48448-20190319-3d1eddd6-14ef-4b4d-9a1d-e5462d07403c to 79,041-51550-20190402-015bc9bc-833b-4146-99f2-2a6477134132 (#7183)
Update safari-technology-preview from 78,041-48448-20190319-3d1eddd6-14ef-4b4d-9a1d-e5462d07403c to 79,041-51550-20190402-015bc9bc-833b-4146-99f2-2a6477134132 (#7183)


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