mapnik: update 3.1.0_14 bottle.
mapnik: update 3.1.0_14 bottle.

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