sysutils/lnav: Update 0.12.3 => 0.13.2

Changelogs:
https://github.com/tstack/lnav/releases/tag/v0.12.4
https://github.com/tstack/lnav/releases/tag/v0.13.0
https://github.com/tstack/lnav/releases/tag/v0.13.1
https://github.com/tstack/lnav/releases/tag/v0.13.2

PR: 292288
Approved by: Thomas Hurst <tom@hur.st> (maintainer, timeout 2 weeks)
Co-authored-by: Vladimir Druzenko <vvd@FreeBSD.org>