[FIX] base: @odoo-module alias ending with **/

When you define an @odoo-module with an alias without any space between
the alias and the **/, the alias contains the **/.
The purpose of this commit is to no longer add the **/ to the alias.

Example:
/** @odoo-module alias=web.base**/

Before:
  odoo.define(`web.base**/`, function(require) {
After:
  odoo.define(`web.base`, function(require) {

closes odoo/odoo#66929

Signed-off-by: Géry Debongnie (ged) <ged@openerp.com>