docs(openapi): re-generate OpenAPI specification

api-reference/openapi_spec.json

@@ -6991,6 +6991,11 @@
               }
             ],
             "nullable": true
+          },
+          "custom_outgoing_webhook_http_headers": {
+            "type": "object",
+            "description": "You can specify up to 50 keys, with key names up to 40 characters long and values up to 500 characters long. It is suggested to use up to 4 keys. These key-value pairs are sent as additional custom headers in the outgoing webhook request.",
+            "nullable": true
           }
         },
         "additionalProperties": false
@@ -7149,6 +7154,11 @@
               }
             ],
             "nullable": true
+          },
+          "custom_outgoing_webhook_http_headers": {
+            "type": "object",
+            "description": "These key-value pairs are sent as additional custom headers in the outgoing webhook request.",
+            "nullable": true
           }
         }
       },