Merge pull request #8569 from hashicorp/d/update-scale-request-params

Docs: Update Reason to Message in the job scale docs

website/pages/api-docs/jobs.mdx

@@ -1811,11 +1811,11 @@ The table below shows this endpoint's support for
 - `Target` `(json: required)` - JSON map containing the target of the scaling operation.
   Must contain a field `Group` with the name of the task group that is the target of this scaling action.
 
-- `Reason` `(string: <optional>)` - Description of the scale action, persisted as part of the scaling event.
-  Indicates information or reason for scaling; one of `Reason` or `Error` must be provided.
+- `Message` `(string: <optional>)` - Description of the scale action, persisted as part of the scaling event.
+  Indicates information or reason for scaling; one of `Message` or `Error` must be provided.
 
 - `Error` `(string: <optional>)` - Description of the scale action, persisted as part of the scaling event.
-  Indicates an error state preventing scaling; one of `Reason` or `Error` must be provided.
+  Indicates an error state preventing scaling; one of `Message` or `Error` must be provided.
 
 - `Meta` `(json: <optional>)` - JSON block that is persisted as part of the scaling event.
 
@@ -1834,7 +1834,7 @@ The table below shows this endpoint's support for
             "memory"
         ]
     },
-    "Reason": "metric did not satisfy SLA",
+    "Message": "metric did not satisfy SLA",
     "Target": {
         "Group": "cache"
     }