Organization stats fail if any repo is empty

[mister-ben]

When checking an organization, any empty repo will cause the action to fail. Simply bad timing could mean a user creates a repo as the action is running.

Actual:
Exits with

Expected status_code 200 but got 204
Error getting contributors for repository: foo/bar
No more repositories will be processed. Please delete the (empty?) repository and try again.
204 [No message]

Expected;
Continues, perhaps logging

Error getting contributors for repository: foo/bar. It may be empty.