Fix issue with libpangocairo
Summary: Resolves T7968
Test Plan: Launch steam and confirm friends list and store load as expected
Reviewers: Triage Team, DataDrake
Reviewed By: Triage Team, DataDrake
Subscribers: DataDrake, sunnyflunk, kyrios123
Maniphest Tasks: T7968
Differential Revision: https://dev.getsol.us/D6283