Because [GitHub removed support for the `git://github.com/…` protocol in 2022](https://github.blog/2021-09-01-improving-git-protocol-security-github/#no-more-unauthenticated-git) many packages from GitHub can no longer be pulled. Replacing all `git://github.com/…` URLs with the corresponding `https://github.com/…` URLs fixes the problem.
Because GitHub removed support for the
git://github.com/…protocol in 2022 many packages from GitHub can no longer be pulled. Replacing allgit://github.com/…URLs with the correspondinghttps://github.com/…URLs fixes the problem.