Bump com.fasterxml.jackson.core:jackson-databind from 2.21.0 to 2.21.3 in /jsonschema2pojo-gradle-plugin/example/java

Bump com.fasterxml.jackson.core:jackson-databind from 2.21.0 to 2.21.3 in /jsonschema2pojo-gradle-plugin/example/java #1226