bitbucket: Skip buggy page when listing

Some URLs of the repositories endpoint from BitBucket REST API 2.0 can return an error 500. In that case, skip the buggy repositories page and get next one to continue listing and avoid to end it prematurely.

Related to #4239

This should enable to resume BitBucket listing of git repositories as it is stuck since around one year (and thus newly created repositories after date 2022-04-22T17:14:21.817530+00:00 have not been archived).