2.2.11-3: Update new git source URL
This changes the GitHub URL used to retrieve the repository, since it
changed upstream. This commit is also as part of an on-going effort to
update the Fedora package to the latest (and final) release of the
community CLI package, before looking into an updated package for the
official client at https://github.com/ProtonVPN/linux-cli
Signed-off-by: Justin W. Flory (he/him) [Fedora Project] <jwf@fedoraproject.org>