Fix elastic#129104 by adding a FeatureFlag to YAML tests (elastic#129569)

Author: carlosdelest

qa/smoke-test-multinode/src/yamlRestTest/java/org/elasticsearch/smoketest/SmokeTestMultiNodeClientYamlTestSuiteIT.java

@@ -38,6 +38,7 @@ public class SmokeTestMultiNodeClientYamlTestSuiteIT extends ESClientYamlSuiteTe
         .feature(FeatureFlag.SUB_OBJECTS_AUTO_ENABLED)
         .feature(FeatureFlag.DOC_VALUES_SKIPPER)
         .feature(FeatureFlag.USE_LUCENE101_POSTINGS_FORMAT)
+        .feature(FeatureFlag.IVF_FORMAT)
         .build();
 
     public SmokeTestMultiNodeClientYamlTestSuiteIT(@Name("yaml") ClientYamlTestCandidate testCandidate) {

x-pack/plugin/esql/src/test/java/org/elasticsearch/xpack/esql/optimizer/LocalPhysicalPlanOptimizerTests.java

@@ -2097,7 +2097,7 @@ protected FullTextFunctionTestCase(Class<? extends FullTextFunction> fullTextFun
         }
 
         protected FullTextFunctionTestCase(Class<? extends FullTextFunction> fullTextFunction) {
-            this(fullTextFunction, randomFrom("text", "keyword"), randomAlphaOfLengthBetween(1, 10));
+            this(fullTextFunction, randomFrom("text", "keyword"), randomAlphaOfLengthBetween(5, 10));
         }
 
         public Class<? extends FullTextFunction> fullTextFunction() {

x-pack/qa/core-rest-tests-with-security/src/yamlRestTest/java/org/elasticsearch/xpack/security/CoreWithSecurityClientYamlTestSuiteIT.java

@@ -52,6 +52,7 @@ public class CoreWithSecurityClientYamlTestSuiteIT extends ESClientYamlSuiteTest
         .feature(FeatureFlag.SUB_OBJECTS_AUTO_ENABLED)
         .feature(FeatureFlag.DOC_VALUES_SKIPPER)
         .feature(FeatureFlag.USE_LUCENE101_POSTINGS_FORMAT)
+        .feature(FeatureFlag.IVF_FORMAT)
         .build();
 
     public CoreWithSecurityClientYamlTestSuiteIT(@Name("yaml") ClientYamlTestCandidate testCandidate) {