Change execute test version.

Signed-off-by: Nathalie Jonathan <[email protected]>

Author: nathaliellenaa

tests/plugins/ml/ml/execute.yaml

@@ -1,7 +1,7 @@
 $schema: ../../../../json_schemas/test_story.schema.yaml
 
 description: Test the execution of algorithms.
-version: '>= 2.0'
+version: '>= 2.19'
 prologues:
   - path: /_cluster/settings
     method: PUT