[FIX] hr_work_entry: make end date field required in form

closes odoo/odoo#107981

X-original-commit: a12c6672
Signed-off-by: Yannick Tivisse (yti) <yti@odoo.com>

addons/hr_work_entry/views/hr_work_entry_views.xml

@@ -58,7 +58,7 @@
                         </group>
                         <group>
                             <field name="date_start" attrs="{'readonly': [('state', '!=', 'draft')]}" />
-                            <field name="date_stop" attrs="{'readonly': [('state', '!=', 'draft')]}" />
+                            <field name="date_stop" attrs="{'readonly': [('state', '!=', 'draft')]}" required="1"/>
                             <label for="duration" string="Period"/>
                             <div class="o_row mw-50 mw-sm-25">
                                 <field name="duration"