feat: Update swagger to openapi 3.0.4, update request payloads with examples (#11374)

swagger/parameters/contact_sort.yml

@@ -1,14 +1,15 @@
 in: query
 name: sort
-type: string
-enum:
-  - name
-  - email
-  - phone_number
-  - last_activity_at
-  - -name
-  - -email
-  - -phone_number
-  - -last_activity_at
+schema:
+  type: string
+  enum:
+    - name
+    - email
+    - phone_number
+    - last_activity_at
+    - -name
+    - -email
+    - -phone_number
+    - -last_activity_at
 required: false
 description: The attribute by which list should be sorted