Bump jackson.version from 2.11.4 to 2.12.1 in /lang/java

Bumps `jackson.version` from 2.11.4 to 2.12.1.

Updates `jackson-core` from 2.11.4 to 2.12.1
- [Release notes](https://github.com/FasterXML/jackson-core/releases)
- [Commits](https://github.com/FasterXML/jackson-core/compare/jackson-core-2.11.4...jackson-core-2.12.1)

Updates `jackson-databind` from 2.11.4 to 2.12.1
- [Release notes](https://github.com/FasterXML/jackson/releases)
- [Commits](https://github.com/FasterXML/jackson/commits)

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/lang/java/pom.xml b/lang/java/pom.xml
index 232a99a..7c185ac 100644
--- a/lang/java/pom.xml
+++ b/lang/java/pom.xml
@@ -40,7 +40,7 @@
     <!-- version properties for dependencies -->
 
     <hadoop.version>3.3.0</hadoop.version>
-    <jackson.version>2.11.4</jackson.version>
+    <jackson.version>2.12.1</jackson.version>
     <servlet-api.version>4.0.1</servlet-api.version>
     <jetty.version>9.4.35.v20201120</jetty.version>
     <jopt-simple.version>5.0.4</jopt-simple.version>