[apache#5911] fix(docs): Fix the wrong possible values. (apache#5922)

### What changes were proposed in this pull request?

Fix the wrong possible values. Remove "COLUMN" from metadataObjectType
possible values in get/set owner.

### Why are the changes needed?

Fix: apache#5911

### Does this PR introduce _any_ user-facing change?

No.

### How was this patch tested?

Just documents.

docs/open-api/openapi.yaml

@@ -469,15 +469,14 @@ components:
       schema:
         type: string
         enum:
+          - "METALAKE"
           - "CATALOG"
           - "SCHEMA"
           - "TABLE"
           - "COLUMN"
           - "FILESET"
           - "TOPIC"
           - "ROLE"
-          - "METALAKE"
-
     metadataObjectFullName:
       name: metadataObjectFullName
       in: path

docs/open-api/owners.yaml

@@ -22,7 +22,7 @@ paths:
   /metalakes/{metalake}/owners/{metadataObjectType}/{metadataObjectFullName}:
     parameters:
       - $ref: "./openapi.yaml#/components/parameters/metalake"
-      - $ref: "./openapi.yaml#/components/parameters/metadataObjectType"
+      - $ref: "#/components/parameters/metadataObjectTypeOfOwner"
       - $ref: "./openapi.yaml#/components/parameters/metadataObjectFullName"
 
     put:
@@ -171,4 +171,21 @@ components:
           "org.apache.gravitino.exceptions.NotFoundException: Metadata object or owner does not exist",
           "..."
         ]
-      }
+      }
+
+  parameters:
+    metadataObjectTypeOfOwner:
+      name: metadataObjectType
+      in: path
+      description: The type of the metadata object
+      required: true
+      schema:
+        type: string
+        enum:
+          - "METALAKE"
+          - "CATALOG"
+          - "SCHEMA"
+          - "TABLE"
+          - "FILESET"
+          - "TOPIC"
+          - "ROLE"