audit: check for missing xz build-time dep
audit: check for missing xz build-time dep

Closes Homebrew/homebrew#17565.

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