Update protobuf to 3.14.0#1374

pyup-bot wants to merge 1 commit intomasterkragniz/python-etcd3:masterfrom

pyup-update-protobuf-3.6.1-to-3.14.0kragniz/python-etcd3:pyup-update-protobuf-3.6.1-to-3.14.0Copy head branch name to clipboard