[3.12] Remove limit in calendar CLI help message for year arg (GH-114719) (GH-114722)

The limit was removed in 66c88ce30ca2b23daa37038e1a3c0de98f241f50 (GH-4109).
(cherry picked from commit 0f54ee4c6cdba74492183eb2dd142393c7dba403)

Co-authored-by: Steven Ward <planet36@users.noreply.github.com>