[CLA] add Stephane Mangin to Camptocamp CLA

closes odoo/odoo#61575

Signed-off-by: Martin Trigaux (mat) <mat@odoo.com>

doc/cla/corporate/camptocamp.md

@@ -37,3 +37,4 @@ Julien Coux julien.coux@camptocamp.com https://github.com/jcoux
 Alexandre Saunier alexandre.saunier@camptocamp.com https://github.com/asaunier
 Frédéric Junod frederic.junod@camptocamp.com https://github.com/fredj
 Thomas Nowicki thomas.nowicki@camptocamp.com https://github.com/Tonow-c2c
+Stéphane Mangin stephane.mangin@camptocamp.com https://github.com/StephaneMangin