pull: use bottle_defined?
pull: use bottle_defined?

Fixes Homebrew/homebrew#45575

Closes Homebrew/homebrew#45577.

Signed-off-by: Mike McQuaid <a17fed27eaa842282862ff7c1b9c8395a26ac320@mikemcquaid.com>

ilovezfs/brew,mgrimes/brew,pseudocody/brew,amar-laksh/brew_sudo,tonyg/homebrew,tonyg/homebrew,mistydemeo/homebrew,aw1621107/brew,pseudocody/brew,jmsundar/brew,mistydemeo/homebrew,konqui/brew,gregory-nisbet/brew,Homebrew/brew,vitorgalvao/brew,JCount/brew,Homebrew/brew,reitermarkus/brew,zmwangx/brew,Homebrew/brew,mahori/brew,DomT4/brew,nandub/brew,Linuxbrew/brew,hanxue/linuxbrew,aw1621107/brew,rwhogg/brew,reitermarkus/brew,palxex/brew,AnastasiaSulyagina/brew,konqui/brew,staticfloat/brew,amar-laksh/brew_sudo,JCount/brew,vitorgalvao/brew,gregory-nisbet/brew,claui/brew,tonyg/homebrew,maxim-belkin/brew,zmwangx/brew,gordonmcshane/homebrew,ilovezfs/brew,EricFromCanada/brew,sjackman/homebrew,Linuxbrew/brew,palxex/brew,MikeMcQuaid/brew,mistydemeo/homebrew,muellermartin/dist,hanxue/linuxbrew,bfontaine/brew,rwhogg/brew,maxim-belkin/brew,alyssais/brew,Homebrew/brew,sjackman/homebrew,staticfloat/brew,alyssais/brew,reelsense/brew,jmsundar/brew,vitorgalvao/brew,AnastasiaSulyagina/brew,alyssais/brew,EricFromCanada/brew,aw1621107/brew,mahori/brew,jmsundar/brew,bfontaine/brew,DomT4/brew,muellermartin/dist,reitermarkus/brew,staticfloat/brew,maxim-belkin/brew,MikeMcQuaid/brew,pseudocody/brew,nandub/brew,sjackman/homebrew,DomT4/brew,vitorgalvao/brew,sjackman/homebrew,konqui/brew,rwhogg/brew,mahori/brew,muellermartin/dist,reitermarkus/brew,bfontaine/brew,EricFromCanada/brew,toonetown/homebrew,gordonmcshane/homebrew,JCount/brew,ilovezfs/brew,zmwangx/brew,EricFromCanada/brew,mgrimes/brew,reelsense/brew,Linuxbrew/brew,palxex/brew,DomT4/brew,Linuxbrew/brew,claui/brew,gregory-nisbet/brew,konqui/brew,claui/brew,gordonmcshane/homebrew,claui/brew,hanxue/linuxbrew,reelsense/brew,AnastasiaSulyagina/brew,amar-laksh/brew_sudo,mgrimes/brew,JCount/brew,nandub/brew,MikeMcQuaid/brew,toonetown/homebrew,mahori/brew,MikeMcQuaid/brew,toonetown/homebrew,nandub/brew