Bump the maven-dependencies group with 1 update

Bumps the maven-dependencies group with 1 update: [io.projectreactor:reactor-test](https://github.com/reactor/reactor-core).


Updates `io.projectreactor:reactor-test` from 3.6.2 to 3.6.4
- [Release notes](https://github.com/reactor/reactor-core/releases)
- [Commits](reactor/reactor-core@v3.6.2...v3.6.4)

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

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

pom.xml

@@ -54,7 +54,7 @@
         <javax-annotation.version>1.3.2</javax-annotation.version>
 
         <reactive.streams.version>1.0.4</reactive.streams.version>
-        <projectreactor.version>3.6.2</projectreactor.version>
+        <projectreactor.version>3.6.4</projectreactor.version>
 
         <jacoco-maven-plugin.version>0.8.11</jacoco-maven-plugin.version>
         <junit.jupiter.version>5.10.2</junit.jupiter.version>