dns/knot-resolver6: Update 6.0.17 => 6.1.0
Release Notes:
https://www.knot-resolver.cz/documentation/v6.1.0/NEWS.html#knot-resolver-6-1-0-2026-01-08
- Remove hardcoded lua 5.1 - upstream added support for newer versions.
- Replace manual strip with --strip build option.
- Remove unnecessary LDFLAGS.
- Fix TESTUNIT option.
PR: 292402 291928
MFH: 2026Q1
Co-authored-by: Vladimir Druzenko <vvd@FreeBSD.org>
(cherry picked from commit faca4dc5dc0dd33badf29c92e3f86b2e5ac2c6bc)