Github name change breaks connection with Begin account.

[ShawnHosea]

Expected behavior Expected Github name change to be recognized in the Begin app as well.

Description of bug Begin does not recognize Github name change so repositories do not update. Begin Activity will continue to say pending.

Steps to reproduce Detailed steps to reproduce the behavior:

1. Navigate to Github settings
2. Navigate to Account
3. Click Change Username

Screenshots

Desktop

• OS: [e.g. macOS]
• Browser: [Chrome]
• Version: [e.g. 22.4.201]