[CLA] Update Vauxoo's CLA adding alejandromellado

Incorporate Alejandro Mellado (alejandromellado) as Vauxoo's contributor.

I confirm I have signed the CLA and read the PR guidelines at www.odoo.com/submit-pr

closes odoo/odoo#131178

X-original-commit: 73ee076b
Signed-off-by: Martin Trigaux (mat) <mat@odoo.com>