Bump jackson-databind from 2.8.5 to 2.9.10.4 in /demo

Bumps [jackson-databind](https://github.com/FasterXML/jackson) from 2.8.5 to 2.9.10.4.
- [Release notes](https://github.com/FasterXML/jackson/releases)
- [Commits](https://github.com/FasterXML/jackson/commits)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

demo/pom.xml

@@ -64,7 +64,7 @@
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-databind</artifactId>
-            <version>2.8.5</version>
+            <version>2.9.10.4</version>
         </dependency>
         <dependency>
             <groupId>com.fasterxml.jackson.module</groupId>