Use system CA certs for SSL connections about gitlabber

[alaczyz]

Hi,
@emanspeaks
I have the same issue and your code solves it. Can you create PR?
Best regards,
Ala

[heltewig-fisp]

Hi, I second that PR.
Same problem here, self-signed corporate CA.
Unfortunately, I have no clue where to start modding my local installation of gitlabber...

Best regards,
Sebastian

[gargoylexxx]

Just to share here, am using self-signed corporate CA too. Since i am lazy to grab CA cert from network and security team, i just modify a bit on the local gitlabber code instead to skip all SSL verification.

Edit in the local library file "gitlab-tree.py", and add ssl_verify=False to the Gitlab object

self.gitlab = Gitlab(url, private_token=token, ssl_verify=False)

This is an insecure method.