mypy --install-types --non-interactive . (#4530)
mypy --install-types --non-interactive . (#4530)

* mypy --install-types --non-interactive .

@dhruvmanila Is this useful/needed given that we do not pin our dependencies?

https://mypy-lang.blogspot.com/2021/06/mypy-0910-released.html

* updating DIRECTORY.md

Co-authored-by: github-actions <47a35b99ddbe74edbea9dad62cf9a3b212194173@users.noreply.github.com>
TheAlgorithms/Python