Bump io.projectreactor:reactor-core in /chat-getting-started-dropwizard

Bumps [io.projectreactor:reactor-core](https://github.com/reactor/reactor-core) from 3.5.9 to 3.5.10.
- [Release notes](https://github.com/reactor/reactor-core/releases)
- [Commits](reactor/reactor-core@v3.5.9...v3.5.10)

---
updated-dependencies:
- dependency-name: io.projectreactor:reactor-core
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

chat-getting-started-dropwizard/pom.xml

@@ -19,7 +19,7 @@
         <dropwizard.version>2.1.5</dropwizard.version>
         <mainClass>io.axoniq.labs.chat.ChatGettingStartedApplication</mainClass>
         <axon.version>4.8.2</axon.version>
-        <projectreactor.version>3.5.9</projectreactor.version>
+        <projectreactor.version>3.5.10</projectreactor.version>
         <junit.jupiter.version>5.10.0</junit.jupiter.version>
         <hamcrest.version>2.2</hamcrest.version>