tiosafe_core: fix some wrong usage of version property

It seems to accept int, but version is supposed to be a string.

bt5/erp5_tiosafe_core/ModuleComponentTemplateItem/portal_components/module.erp5.ERP5NodeConduit.py

@@ -61,7 +61,7 @@ class ERP5NodeConduit(TioSafeBaseConduit):
                                                                           destination=object.getRelativeUrl(),
                                                                           destination_decision=object.getRelativeUrl(),
                                                                           destination_administration=object.getRelativeUrl(),
-                                                                          version=0o01)
+                                                                          version='001')
     stc.validate()
 
   def _updateSaleTradeCondition(self, object, **kw): # pylint: disable=redefined-builtin

bt5/erp5_tiosafe_core/ModuleComponentTemplateItem/portal_components/module.erp5.ERP5PaymentTransactionConduit.py

@@ -78,7 +78,7 @@ class ERP5PaymentTransactionConduit(TioSafeBaseConduit):
     # Create the STC
     stc = object.getPortalObject().sale_trade_condition_module.newContent(title=stc_title,
 		    specialise=default_stc,
-		    version=0o01)
+		    version='001')
     stc.validate()
 
     return stc