x11-fonts/iosevka-comfy: mark as RESTRICTED

Upstream believes the font to not be distributable as it has the same
name as the original font it is derived from. This violates § 3 of the
ISL Open Font License 1.1.

The renamed font is distributable and provided in x11-fonts/aporetic,
but has reduced variants. Maintainer has requested that this port
remain for use until all variants are added.

PR: 284597
MFH: 2025Q1