test(marker): include marker_definitions in project-asdict expectations

project.asdict() and project_to_topology() gained a marker_definitions key.
Two tests that assert exact dict equality needed the new field.

tests/controller/test_project.py

@@ -82,6 +82,7 @@ async def test_json():
         "drawing_grid_size": 25,
         "supplier": None,
         "variables": None,
+        "marker_definitions": {},
         "created_by": None
     }
 

tests/controller/test_topology.py

@@ -60,6 +60,7 @@ async def test_project_to_topology_empty(tmpdir):
             "supplier": None,
             "variables": None,
             "version": __version__,
+            "marker_definitions": {},
             "created_by": None
         }