cran.lister: Use CRAN's canonical url as origin url

Also make sure the uid is versioned (so as to allow to actually see new package versions).

The canonical urls were seen at the available packages listing [1]

(This means an adaptation loader CRAN's side is needed)

• [1] https://cran.r-project.org/web/packages/available_packages_by_date.html

Test Plan

tox

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Migrated from D2524 (view on Phabricator)