Bump org.apache.kerby:kerb-simplekdc from 2.0.2 to 2.1.0

Bumps org.apache.kerby:kerb-simplekdc from 2.0.2 to 2.1.0.

---
updated-dependencies:
- dependency-name: org.apache.kerby:kerb-simplekdc
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

client/pom.xml

@@ -35,7 +35,7 @@
         <commons-io.version>2.16.1</commons-io.version>
         <mockito.version>4.11.0</mockito.version>
         <hamcrest.version>3.0</hamcrest.version>
-        <kerby.version>2.0.2</kerby.version>
+        <kerby.version>2.1.0</kerby.version>
     </properties>
 
     <developers>