[FIX] hr: disable launch plan button on warning

closes odoo/odoo#106385

Signed-off-by: Kevin Baptiste <kba@odoo.com>

addons/hr/wizard/hr_plan_wizard_views.xml

@@ -19,7 +19,7 @@
                     </sheet>
                     <footer>
                         <button name="action_launch" string="Launch Plan" type="object" class="oe_highlight" attrs="{'invisible': [('warning', '!=', False)]}" groups="hr.group_hr_user" data-hotkey="q"/>
-                        <button name="action_launch" string="Launch Plan" type="object" class="oe_highlight" disabled="disabled" attrs="{'invisible': [('warning', '=', False)]}" groups="hr.group_hr_user" data-hotkey="q"/>
+                        <button name="action_launch" string="Launch Plan" type="object" class="oe_highlight disabled" attrs="{'invisible': [('warning', '=', False)]}" groups="hr.group_hr_user" data-hotkey="q"/>
                         <button string="Cancel" class="btn-secondary" special="cancel" data-hotkey="z"/>
                     </footer>
                 </form>