Update urllib3 to 1.26.1#280

pyup-bot wants to merge 2 commits intomasterjoaogarciadelima/libpythonpro:masterfrom

pyup-update-urllib3-1.25.7-to-1.26.1joaogarciadelima/libpythonpro:pyup-update-urllib3-1.25.7-to-1.26.1Copy head branch name to clipboard