Bump jackson-databind from 2.12.6.1 to 2.13.4.1 in /tests/test-javalin

Bumps [jackson-databind](https://github.com/FasterXML/jackson) from 2.12.6.1 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] <[email protected]>

Author: dependabot[bot]

tests/test-javalin/pom.xml

@@ -19,7 +19,7 @@
     <javalin.version>4.6.0</javalin.version>
     <swagger.version>2.0.8</swagger.version>
     <kotlin.version>1.3.71</kotlin.version>
-    <jackson.version>2.12.6.1</jackson.version>
+    <jackson.version>2.13.4.1</jackson.version>
     <avaje-http-version>1.19-SNAPSHOT</avaje-http-version>
   </properties>