This will allow to align the loader package's implementations with the
loader-core's regarding retry policy (no retry policy on the package ones).
Also, as a next step, this will allow again to simplify the loader-core's
implementation.
This should help in fixing or at least decreasing the frequency of [1] (which happens for all package loaders, not only cran's).
endpoints:
- origin_visit_add
- origin_metadata_add
- origin_visit_update
- directory_add
- revision_add
- release_add
- snapshot_add
- tool_add
- metadata_provider_add
[1] https://sentry.softwareheritage.org/share/issue/d4f1208b7eec4b43b11e38494ff039cc/
Related to D2511 (which only added `content_add`)