Merge remote-tracking branch 'carlosdelest/carlosdelest/fix-synonyms-ci-tests-timeout' into carlosdelest/fix-synonyms-ci-tests-timeout

# Conflicts:
#	muted-tests.yml
#	rest-api-spec/src/yamlRestTest/resources/rest-api-spec/test/synonyms/110_synonyms_invalid.yml
#	rest-api-spec/src/yamlRestTest/resources/rest-api-spec/test/synonyms/20_synonyms_get.yml
#	rest-api-spec/src/yamlRestTest/resources/rest-api-spec/test/synonyms/30_synonyms_delete.yml
#	rest-api-spec/src/yamlRestTest/resources/rest-api-spec/test/synonyms/50_synonym_rule_put.yml
#	rest-api-spec/src/yamlRestTest/resources/rest-api-spec/test/synonyms/60_synonym_rule_get.yml
#	rest-api-spec/src/yamlRestTest/resources/rest-api-spec/test/synonyms/70_synonym_rule_delete.yml
#	rest-api-spec/src/yamlRestTest/resources/rest-api-spec/test/synonyms/80_synonyms_from_index.yml
#	rest-api-spec/src/yamlRestTest/resources/rest-api-spec/test/synonyms/90_synonyms_reloading_for_synset.yml

Author: carlosdelest

rest-api-spec/src/yamlRestTest/resources/rest-api-spec/test/synonyms/40_synonyms_sets_get.yml

@@ -39,6 +39,15 @@ setup:
           persistent:
             logger.org.elasticsearch.synonyms: DEBUG
 
+  # 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-2
+        level: shards
+        timeout: 1m
+        wait_for_status: green
+
+
 ---
 teardown:
   - do: