Fix error on XML code in 12.1.8 on the docs

Signed-off-by: Javier Gil <javiergil@eprosima.com>

Author: Javgilavi

code/XMLTester.xml

@@ -3267,7 +3267,7 @@
                     <properties>
                         <property>
                             <name>fastdds.type_propagation</name>
-                            <value>enable</value>
+                            <value>enabled</value>
                         </property>
                     </properties>
                 </propertiesPolicy>

docs/fastdds/property_policies/non_consolidated_qos.rst

@@ -509,4 +509,4 @@ The different property values have the following effects on the local |DomainPar
             :language: xml
             :start-after: <!-->TYPE_PROPAGATION_PROPERTY<-->
             :end-before: <!--><-->
-            :lines: 2-4,6-16,18-19
+            :lines: 2-4,6-17,19-20