[FIX] account: Fix matching regex case insensitive in matching rules

The other filters are case insensitive, why not this one?

closes odoo/odoo#35899

Signed-off-by: Quentin De Paoli (qdp) <qdp@openerp.com>

addons/account/models/account_reconcile_model.py

@@ -326,7 +326,7 @@ class AccountReconcileModel(models.Model):
             query += ' AND st_line.name NOT ILIKE %s'
             params += ['%%%s%%' % rule.match_label_param]
         elif rule.match_label == 'match_regex':
-            query += ' AND st_line.name ~ %s'
+            query += ' AND st_line.name ~* %s'
             params += [rule.match_label_param]
 
         # Filter on partners.