converters/fribidi: Update to 1.0.15

Backport upstream commit 3826589ea556da613bd42742a169789469e8b635

Changelog: https://github.com/fribidi/fribidi/releases/tag/v1.0.15

Reference:
https://github.com/fribidi/fribidi/commit/3826589ea556da613bd42742a169789469e8b635

PR: 279594
Approved by: desktop (arrowd)
Sponsored by: Blinkinblox