Bump jackson-databind in /fdks/fdk-java/examples/async-thumbnails

Bumps [jackson-databind](https://github.com/FasterXML/jackson) from 2.9.10.4 to 2.10.0.pr1.
- [Release notes](https://github.com/FasterXML/jackson/releases)
- [Commits](https://github.com/FasterXML/jackson/commits)

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

fdks/fdk-java/examples/async-thumbnails/pom.xml

@@ -10,7 +10,7 @@
 
         <fdk.version>1.0.98</fdk.version>
         <mockito.version>2.8.47</mockito.version>
-        <jackson.version>2.9.10.4</jackson.version>
+        <jackson.version>2.10.0.pr1</jackson.version>
     </properties>
 
     <groupId>com.example.fn</groupId>