[IMP] test_lint: raise max es version

ESNext is now supported in master so the max version number has been raised.
Note that es-check is still used but not for the original purpose ; it is
still useful for JS syntax checking.

closes odoo/odoo#34362

Signed-off-by: Christophe Monniez (moc) <moc@odoo.com>

odoo/addons/test_lint/tests/test_ecmascript.py

@@ -10,7 +10,7 @@ from odoo.tests.common import TransactionCase
 from odoo import tools
 from odoo.modules import get_modules, get_module_path
 
-MAX_ES_VERSION = 'es5'
+MAX_ES_VERSION = 'es9'
 
 _logger = logging.getLogger(__name__)