upgrade jackson to 2.15.1
diff --git a/pom.xml b/pom.xml
index 13a3f52..336fa48 100644
--- a/pom.xml
+++ b/pom.xml
@@ -73,7 +73,7 @@
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <version.hamcrest>2.2</version.hamcrest>
     <version.itu>1.7.0</version.itu>
-    <version.jackson>2.14.2</version.jackson>
+    <version.jackson>2.15.1</version.jackson>
     <version.joni>2.1.41</version.joni>
     <version.junit>5.9.2</version.junit>
     <version.logback>1.2.11</version.logback>