slapos_pdm: Update state titles to follow up same terms used by Support Requests.

master/bt5/slapos_pdm/WorkflowTemplateItem/portal_workflow/upgrade_decision_workflow/states/confirmed.xml

@@ -22,7 +22,7 @@
         </item>
         <item>
             <key> <string>title</string> </key>
-            <value> <string>Available</string> </value>
+            <value> <string>Open</string> </value>
         </item>
         <item>
             <key> <string>transitions</string> </key>

master/bt5/slapos_pdm/WorkflowTemplateItem/portal_workflow/upgrade_decision_workflow/states/delivered.xml

@@ -22,7 +22,7 @@
         </item>
         <item>
             <key> <string>title</string> </key>
-            <value> <string>Delivered</string> </value>
+            <value> <string>Closed</string> </value>
         </item>
         <item>
             <key> <string>transitions</string> </key>