net/nncp: Update 8.8.3 => 8.13.0
Changelogs:
http://www.nncpgo.org/Release-8_005f9_005f0.html
http://www.nncpgo.org/Release-8_005f10_005f0.html
http://www.nncpgo.org/Release-8_005f11_005f0.html
http://www.nncpgo.org/Release-8_005f12_005f0.html
http://www.nncpgo.org/Release-8_005f12_005f1.html
http://www.nncpgo.org/Release-8_005f13_005f0.html
PR: 289697
Co-authored-by: Vladimir Druzenko <vvd@FreeBSD.org>
MFH: 2025Q4
(cherry picked from commit 0ba00add87f1432fef2bc8592161373f5c66f3eb)