fix level of Tomography appointment (#1606)

* trigger Tomography appt at level 3

* check for key without creating list of keys

---------

Co-authored-by: Tim Hallett <[email protected]>

Author: BinglingICL

src/tlo/methods/rti.py

@@ -3344,13 +3344,12 @@ def apply(self, person_id, squeeze_factor):
         road_traffic_injuries = self.sim.modules['RTI']
         road_traffic_injuries.rti_injury_diagnosis(person_id, self.EXPECTED_APPT_FOOTPRINT)
 
-        if 'DiagRadio' in list(self.EXPECTED_APPT_FOOTPRINT.keys()):
-            self.add_equipment(self.healthcare_system.equipment.from_pkg_names('X-ray'))
-
-        elif 'Tomography' in list(self.EXPECTED_APPT_FOOTPRINT.keys()):
+        if 'Tomography' in self.EXPECTED_APPT_FOOTPRINT:
             self.ACCEPTED_FACILITY_LEVEL = '3'
             self.add_equipment({'Computed Tomography (CT machine)', 'CT scanner accessories'})
 
+        self.add_equipment(self.healthcare_system.equipment.from_pkg_names('X-ray'))
+
     def did_not_run(self, *args, **kwargs):
         pass