When specifying a package to run, it would be nice to be able to pass a git URL that would set the `composer.json > repositories` config. `cpx package/name:dev-branch-name --repository=https://some.repo/url.git`
When specifying a package to run, it would be nice to be able to pass a git URL that would set the
composer.json > repositoriesconfig.cpx package/name:dev-branch-name --repository=https://some.repo/url.git