Authentication problems running the plugin from Bitbucket pipelines

[Oren Shvalb]

Hey guys,
I know this project hasn't been updated for a long time, but I thought to give it a shot before I turn to other alternatives.

so, in my case I'm trying to do `mvn -B jgitflow:release-start jgitflow:release-finish` from a `custom` Bitbucket pipelines script.

I'm getting the following error:

```

Error starting release: org.eclipse.jgit.api.errors.TransportException: http://bitbucket.org/username/project: 301 Moved Permanently 

```

Any idea about this?

Thanks!