misc/lesspipe: Update to 2.06
- use tr to convert into lower case, test string adjustments included in 2.03 version ( https://github.com/wofr06/lesspipe/issues/76 )
- remove perl storable (pst) files interpretation (security fix)
ChangeLog: https://github.com/wofr06/lesspipe/blob/lesspipe/ChangeLog
PR: 265610
Reported by: elfham <elfham+freebsd@gmail.com>
Approved by: maintainer timeout, >2 weeks
MFH: 2022Q3
(cherry picked from commit d8192011d116bb00611928ec51ee64bad8414f76)