Creates a singleton class for GitClient rather than relying on creating an instance to
require being passed around throughout its usages.
PR Close#41515
Instead of repeating the logic for adding the github token to
a repository git url, we add a shared function for automatically
computing the URls with token.
Additionally, URLs for updating/generating tokens have been moved
to a dedicated file in the `utils` folder. Also while being at it,
the yargs github token helper is also moved into the dedicated
Git/Github related util folder.
PR Close#38656
The angular team relies on a number of services for hosting code, running CI, etc. This
tool allows for checking the operational status of all services at once as well as the current
state of the repository with respect to merge and triage ready issues and prs.
PR Close#38601
Joey Perrott
Paul Gschwendtner