mail/sympa: Update from 6.2.22 to 6.2.24

Fix more shebangs

Changelog: https://github.com/sympa-community/sympa/blob/6.2.24/NEWS.md

PR: 224502
Submitted by: geoffroy desvernay <dgeo@centrale-marseille.fr> (maintainer)
Approved by: tcberner (mentor)
Differential Revision: https://reviews.freebsd.org/D13575