Fix apispec

Author: DavidMStraub

gramps_webapi/data/apispec.yaml

@@ -8774,16 +8774,18 @@ definitions:
           - "Gainesville, FA"
       alternate_place_names:
         description: "Alternative names of the place with date."
-        type: object
-        properties:
-          date_str:
-            description: "Date the place name was in use."
-            type: string
-            example: "1800 to 1950"
-          value:
-            description: "The name in use."
-            type: string
-            example: "Gainesville, FA"
+        type: array
+        items:
+          type: object
+          properties:
+            date_str:
+              description: "Date the place name was in use."
+              type: string
+              example: "1800 to 1950"
+            value:
+              description: "The name in use."
+              type: string
+              example: "Gainesville, FA"
       gramps_id:
         description: "The place's Gramps ID."
         type: string