update jackson-core 2.13.4 -> 2.15.0 (#204)

Author: sbSteveK

aws-iot-device-sdk-java/pom.xml

@@ -30,7 +30,7 @@
     <dependency>
       <groupId>com.fasterxml.jackson.core</groupId>
       <artifactId>jackson-core</artifactId>
-      <version>2.13.4</version>
+      <version>2.15.0</version>
     </dependency>
     <dependency>
       <groupId>com.fasterxml.jackson.core</groupId>