Fixes for S3 attachments #117

Closed mdbenito closed 2 years ago

This PR:

Closes #107: uses a hash of the attachment's URL to avoid duplicates upon failure
Closes #103: Doesn't fail if there was an error downloading an attachment
Closes #106: migrates arbitrary attachment types using a browser cookie (workaround for GitLab's missing API endpoint)
Uses previous attachment URL if S3 is not configured

piceaTech / node-gitlab-2-github