MFH: r542074

mail/mutt: Update to 1.14.6

Changes: https://marc.info/?l=mutt-users&m=159450037229752&w=2
PR: 247928
Submitted by: Derek Schrock <dereks@lifeofadishwasher.com> (maintainer)

Approved by: ports-secteam blanket (bugfix release)