Fixed post.tags validation schema

refs #10438

- Change oneOf to anyOf to allow any of the required fields

core/server/api/v2/utils/validators/input/schemas/posts.json

@@ -155,7 +155,7 @@
                         "maxLength": 24
                     }
                 },
-                "oneOf": [
+                "anyOf": [
                     {"required": ["id"]},
                     {"required": ["name"]},
                     {"required": ["slug"]}