Regression in username parsing #160
Description
Describe the bug
In my latest workflow run (https://github.com/agoose77/gennaker-tools/actions/runs/20460042030), GH activity encounters a non-string username. I suspect it's from something like https://github.com/executablebooks/github-activity/blame/fcf9ab367e166d8892e859af969130ac1b1ba198/github_activity/github_activity.py#L613, which has been patched but I assume not released.
As such, I think we just need to make a new release.