graph_editor: sort json for deterministic output

bt5/erp5_graph_editor/SkinTemplateItem/portal_skins/erp5_graph_editor/BusinessProcess_getGraph.py

@@ -74,4 +74,7 @@ class_definition = {
   }
 }
 
-return json.dumps(dict(graph=getBusinessProcessGraph(context), class_definition=class_definition), indent=2)
+return json.dumps(
+  dict(graph=getBusinessProcessGraph(context), class_definition=class_definition),
+  sort_keys=True,
+  indent=2)

bt5/erp5_graph_editor/SkinTemplateItem/portal_skins/erp5_graph_editor/DCWorkflow_getGraph.py

@@ -89,4 +89,7 @@ class_definition = {
   }
 }
 
-return json.dumps(dict(graph=getDCWorkflowGraph(context), class_definition=class_definition), indent=2)
+return json.dumps(
+  dict(graph=getDCWorkflowGraph(context), class_definition=class_definition),
+  sort_keys=True,
+  indent=2)

bt5/erp5_graph_editor/SkinTemplateItem/portal_skins/erp5_graph_editor/Workflow_getGraph.py

@@ -64,4 +64,7 @@ def getWorkflowGraph(workflow):
       graph['node'][state_id]['coordinate'] = position_graph['node'][state_id]['coordinate']
   return graph
 
-return json.dumps(dict(graph=getWorkflowGraph(context), class_definition={}), indent=2)
+return json.dumps(
+  dict(graph=getWorkflowGraph(context), class_definition={}),
+  sort_keys=True,
+  indent=2)

bt5/erp5_graph_editor_ui_test/PathTemplateItem/portal_tests/graph_editor_zuite/testWorkflowGraph-reference-snapshot-1.png.xml

@@ -16,7 +16,7 @@
         </item>
         <item>
             <key> <string>height</string> </key>
-            <value> <int>284</int> </value>
+            <value> <int>277</int> </value>
         </item>
         <item>
             <key> <string>precondition</string> </key>

bt5/erp5_item/SkinTemplateItem/portal_skins/erp5_item/Item_getTrackingListGraphAsJSON.py

@@ -37,4 +37,7 @@ for i, tracking in enumerate(reversed(portal.portal_simulation.getTrackingList(a
     link=movement.absolute_url(),
     source=movement.getSourceUid() or "null",
     destination=movement.getDestinationUid() or "null")
-return json.dumps(dict(graph=graph, class_definition=class_definition), indent=2)
+return json.dumps(
+  dict(graph=graph, class_definition=class_definition),
+  sort_keys=True,
+  indent=2)