feat(specs): add none element to authentication platform

Author: Fluf22

specs/ingestion/common/authenticationParameters.yml

@@ -21,5 +21,10 @@ platform:
   schema:
     type: array
     items:
-      $ref: './schemas/authentication.yml#/Platform'
-    example: commercetools,bigcommerce
+      $ref: '#/platformWithNone'
+    example: commercetools,none
+
+platformWithNone:
+  oneOf:
+    - $ref: './schemas/authentication.yml#/Platform'
+    - $ref: './schemas/authentication.yml#/PlatformNone'

specs/ingestion/common/schemas/authentication.yml

@@ -101,6 +101,10 @@ Platform:
   type: string
   enum: ['bigcommerce', 'commercetools']
 
+PlatformNone:
+  type: string
+  enum: ['none']
+
 AuthGoogleServiceAccount:
   type: object
   additionalProperties: false