AWS Role with path does not display properly

[mholttech]

Describe the bug
After testing support for AzureAD AWS Federation (#165) and logging into our environment I found that the AWS role name does not appear correctly when the AWS Role is in a path.

Leapp Version
Fork of 0.6.2 with Pull Request #165

To Reproduce
Steps to reproduce the behavior:

1. Create a new Session
2. Click on 'AWS'
3. Click on 'IAM Role Federated'
4. Fill out the details and use a Role ARN that is in a path such as arn:aws:iam::123456789123:role/CAVM/AVM_app_dev
5. See error

Expected behavior
I would expect to see the role name "AVM_app_dev" or the entire role path "CAVM/AVM_App_dev"

Screenshots

[pethron]

Thanks for reporting; we need to fix the method that extracts the last part from the ARN.
We'll try to fix this for the next release, I think it should be easy.