update samples

Author: wing328

samples/client/petstore/java/feign-hc5/build.gradle

@@ -104,7 +104,7 @@ ext {
     swagger_annotations_version = "1.6.11"
     jackson_version = "2.19.2"
     jackson_databind_version = "2.19.2"
-    jackson_databind_nullable_version = "0.2.8"
+    jackson_databind_nullable_version = "0.2.9"
     jakarta_annotation_version = "1.3.5"
     feign_version = "13.5"
     feign_form_version = "3.8.0"

samples/client/petstore/java/feign-hc5/pom.xml

@@ -320,7 +320,7 @@
         <feign-form-version>3.8.0</feign-form-version>
         <jackson-version>2.17.1</jackson-version>
         <jackson-databind-version>2.17.1</jackson-databind-version>
-        <jackson-databind-nullable-version>0.2.8</jackson-databind-nullable-version>
+        <jackson-databind-nullable-version>0.2.9</jackson-databind-nullable-version>
         <jakarta-annotation-version>1.3.5</jakarta-annotation-version>
         <beanvalidation-version>2.0.2</beanvalidation-version>
         <junit-version>5.10.0</junit-version>