www/forgejo-lts: Copied from www/forgejo

New port for long-term support releases of Forgejo (currently 11.0.7).

MFH: 2025Q2
Reviewed by: bapt
Differential Revision: https://reviews.freebsd.org/D53395

(cherry picked from commit 26cad270ac1d94ad7f1a36ab05c0439a224c28e1)