filesystems/moosefs2-*: Deprecate
2.x reached EoL 2017-12-31, use filesystems/moosefs-* 4.x instead.
PR: 289966
Approved by: Piotr R. Konopelko (MooseFS) <piotr.konopelko@moosefs.com> (maintainer)
MFH: 2026Q1
(cherry picked from commit 90502fc3f14485b41b09d30bcfed7b08a5b6155f)