Update msgpack to 1.1.1#970

pyup-bot wants to merge 1 commit intomastervertexproject/vtx-base-image:masterfrom

pyup-update-msgpack-1.1.0-to-1.1.1vertexproject/vtx-base-image:pyup-update-msgpack-1.1.0-to-1.1.1Copy head branch name to clipboard