devel/c4core: Update 0.1.8 => 0.2.6

Changelogs:
https://github.com/biojppm/c4core/releases/tag/v0.1.9
https://github.com/biojppm/c4core/releases/tag/v0.1.10
https://github.com/biojppm/c4core/releases/tag/v0.1.11
https://github.com/biojppm/c4core/releases/tag/v0.2.0
https://github.com/biojppm/c4core/releases/tag/v0.2.1
https://github.com/biojppm/c4core/releases/tag/v0.2.2
https://github.com/biojppm/c4core/releases/tag/v0.2.3
https://github.com/biojppm/c4core/releases/tag/v0.2.4
https://github.com/biojppm/c4core/releases/tag/v0.2.5
https://github.com/biojppm/c4core/releases/tag/v0.2.6

• Refresh patches.
• Replace PORTVERSION with DISTVERSION and VERSION in PLIST_SUB.

PR: 287839
Approved by: Gasol Wu <gasol.wu@gmail.com> (maintainer)
Co-authored-by: Vladimir Druzenko <vvd@FreeBSD.org>