Update coverage to 7.6.4#427

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

pyup-update-coverage-7.2.7-to-7.6.4renatodamas/libpythonpro:pyup-update-coverage-7.2.7-to-7.6.4Copy head branch name to clipboard