Fix serverless test - wait for index green just after first insertion (#121180)

Author: carlosdelest

rest-api-spec/src/yamlRestTest/resources/rest-api-spec/test/synonyms/90_synonyms_reloading_for_synset.yml

@@ -14,6 +14,12 @@ setup:
             - synonyms: "bye => goodbye"
               id: "synonym-rule-2"
 
+  # This is to ensure that all index shards (write and read) are available. In serverless this can take some time.
+  - do:
+      cluster.health:
+        index: .synonyms
+        wait_for_status: green
+
   # Create synonyms synonyms_set2
   - do:
       synonyms.put_synonym:
@@ -25,12 +31,6 @@ setup:
             - synonyms: "bye => goodbye"
               id: "synonym-rule-2"
 
-  # This is to ensure that all index shards (write and read) are available. In serverless this can take some time.
-  - do:
-      cluster.health:
-        index: .synonyms
-        wait_for_status: green
-
   # Create my_index1 with synonym_filter that uses synonyms_set1
   - do:
       indices.create: