[improve] jackson upgrade version. (#857)

diff --git a/pom.xml b/pom.xml
index a0f80bc..3fc97b7 100644
--- a/pom.xml
+++ b/pom.xml
@@ -86,7 +86,7 @@
         <slf4j.version>1.7.32</slf4j.version>
         <logback.version>1.2.6</logback.version>
         <grpc.version>1.15.0</grpc.version>
-        <jackson.version>2.12.1</jackson.version>
+        <jackson.version>2.13.2</jackson.version>
         <guava.version>30.0-jre</guava.version>
         <caffeine.version>2.8.6</caffeine.version>