Update LKE API docs to reflect actual behavior.

LKE does not impose ASCII-only restrictions on the label name. The only
restrictions on the label are length and JSON validity.

Author: sibucan

openapi.yaml

@@ -15933,14 +15933,12 @@ components:
 
             Labels have the following constraints:
 
-              * Must start with an alpha character
-              * Must only consist of alphanumeric characters and dashes (`-`)
-              * Must not contain two dashes in a row
-          minLength: 3
+              * 4-byte UTF-8 characters are not supported.
+              * UTF-8 characters will be encoded in their byte representation. 
+              * If the label is using UTF-8, the response will return the value
+                using up to 193 1 byte characters.
+          minLength: 1
           maxLength: 32
-          # Kubernetes does NOT allow underscores in resource names and we are
-          # passing this name to Kubernetes. Thus the following pattern:
-          pattern: '[a-zA-Z0-9-]{3, 32}'
           example: lkecluster12345
         region:
           type: string