Bump undertow-core from 1.4.18.Final to 2.2.24.Final in /java/greeter

Bumps [undertow-core](https://github.com/undertow-io/undertow) from 1.4.18.Final to 2.2.24.Final.
- [Release notes](https://github.com/undertow-io/undertow/releases)
- [Commits](https://github.com/undertow-io/undertow/compare/1.4.18.Final...2.2.24.Final)

---
updated-dependencies:
- dependency-name: io.undertow:undertow-core
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/java/greeter/pom.xml b/java/greeter/pom.xml
index 05ebd2b..ade136a 100644
--- a/java/greeter/pom.xml
+++ b/java/greeter/pom.xml
@@ -55,7 +55,7 @@
         <dependency>
             <groupId>io.undertow</groupId>
             <artifactId>undertow-core</artifactId>
-            <version>1.4.18.Final</version>
+            <version>2.2.24.Final</version>
         </dependency>
     </dependencies>