biology/cd-hit: Update to bug-fix release 4.6.6

Changes in version 4.6.6:
Bug fix for cd-hit-dup in variable length input when write out R1 reads

Changes in version 4.6.5:
Add filter for -aL option so that short sequences will be skipped if not
satisfy representative sequences' -aL requirement. This will make compute
faster in clustering settings where sequences in the same cluster are
required to have similar length using -aL -AL option (e.g. -aL 0.9).

Approved by: AMDmi3 (mentor) swills (mentor)
Differential Revision: https://reviews.freebsd.org/D8186