gtksourceview4: update 4.8.4 bottle.
gtksourceview4: update 4.8.4 bottle.

lemzwerg/homebrew-core,makigumo/homebrew-core,chrisfinazzo/homebrew-core,chrisfinazzo/homebrew-core,stgraber/homebrew-core,stgraber/homebrew-core,Homebrew/homebrew-core,filcab/homebrew-core,makigumo/homebrew-core,Homebrew/homebrew-core,filcab/homebrew-core,lemzwerg/homebrew-core