[FIX] stock_dropshipping: Prevent dropshipping settings erasable by code update

These data should be in no update. Else at next update, it can change the configuration
of the production.

This commit closes #13404
Courtesy of @bealdav

addons/stock_dropshipping/stock_dropshipping.xml

 <?xml version="1.0"?>
 <openerp>
-    <data>
+    <data noupdate="1">
         <!-- Sequence and picking type dropship-->
-        
         <record id="seq_picking_type_dropship" model="ir.sequence">
             <field name="name">Dropship</field>
             <field name="prefix">DS</field>
             <field name="padding">5</field>
             <field name="company_id" eval="False"/>
         </record>
-        
-        
         <record id="picking_type_dropship" model="stock.picking.type">
             <field name="name">Dropship</field>
             <field name="sequence_id" ref="seq_picking_type_dropship"/>
@@ -19,8 +16,7 @@
             <field name="default_location_src_id" ref="stock.stock_location_suppliers"/>
             <field name="default_location_dest_id" ref="stock.stock_location_customers"/>
         </record>
-        
-        
+
         <!-- Drop Shipping-->
         <record id="route_drop_shipping" model='stock.location.route'>
             <field name="name">Drop Shipping</field>