Fix rerank test

Author: carlosdelest

x-pack/plugin/esql/qa/testFixtures/src/main/resources/knn-function.csv-spec

@@ -318,7 +318,7 @@ required_capability: knn_function_v4
 required_capability: rerank
 
 from colors metadata _score 
-| where knn(rgb_vector, [128,128,0])
+| where knn(rgb_vector, [100,120,0])
 | sort _score desc, color asc
 | limit 10
 | rerank "deepest blue" ON color WITH { "inference_id" : "test_reranker" }
@@ -328,12 +328,12 @@ from colors metadata _score
 color:text
 olive
 sienna
-chocolate
-peru
-golden rod
+green
 brown
+chocolate
 firebrick
-chartreuse
-green
+peru
 maroon
+golden rod
+gray
 ;