Fix bug when interpreting miele action response (#149710)

homeassistant/components/miele/services.py

@@ -203,7 +203,7 @@ async def get_programs(call: ServiceCall) -> ServiceResponse:
                             else {}
                         ),
                     }
-                    if item["parameters"]
+                    if item.get("parameters")
                     else {}
                 ),
             }

tests/components/miele/fixtures/programs.json

@@ -30,5 +30,9 @@
         "mandatory": true
       }
     }
+  },
+  {
+    "programId": 24000,
+    "program": "Ristretto"
   }
 ]

tests/components/miele/snapshots/test_services.ambr

@@ -43,6 +43,12 @@
         'program': 'Fan plus',
         'program_id': 13,
       }),
+      dict({
+        'parameters': dict({
+        }),
+        'program': 'Ristretto',
+        'program_id': 24000,
+      }),
     ]),
   })
 # ---