[releng] Issue #8073: Re-write scripts/branching/modulepkg.py with help of libmodulemd

[Suzanne Yeghiayan]

The status of the issue: `Re-write scripts/branching/modulepkg.py with help of libmodulemd` of project: `releng` has been updated to: Closed as Fixed by syeghiay.

https://pagure.io/releng/issue/8073