Update github-beta to 1.3.4-beta0-29ad8449 (#6094)
Update github-beta to 1.3.4-beta0-29ad8449 (#6094)


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