build(deps): bump jackson-databind in /examples/async-thumbnails

Bumps [jackson-databind](https://github.com/FasterXML/jackson) from 2.13.2.1 to 2.13.4.1.
- [Release notes](https://github.com/FasterXML/jackson/releases)
- [Commits](https://github.com/FasterXML/jackson/commits)

---
updated-dependencies:
- dependency-name: com.fasterxml.jackson.core:jackson-databind
  dependency-type: direct:production
...

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

examples/async-thumbnails/pom.xml

@@ -28,7 +28,7 @@
 
         <fdk.version>1.0.0-SNAPSHOT</fdk.version>
         <mockito.version>3.3.3</mockito.version>
-        <jackson.version>2.13.4</jackson.version>
+        <jackson.version>2.13.4.1</jackson.version>
     </properties>
 
     <groupId>com.fnproject.fn.examples</groupId>