Bump io.zipkin.zipkin2:zipkin from 3.4.3 to 3.4.4

Bumps [io.zipkin.zipkin2:zipkin](https://github.com/openzipkin/zipkin) from 3.4.3 to 3.4.4.
- [Release notes](https://github.com/openzipkin/zipkin/releases)
- [Changelog](https://github.com/openzipkin/zipkin/blob/master/RELEASE.md)
- [Commits](openzipkin/zipkin@3.4.3...3.4.4)

---
updated-dependencies:
- dependency-name: io.zipkin.zipkin2:zipkin
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

dependencies/default/pom.xml

@@ -89,7 +89,7 @@
     <spring.version>6.1.10</spring.version>
     <swagger.version>2.2.27</swagger.version>
     <vertx.version>4.5.11</vertx.version>
-    <zipkin.version>3.4.3</zipkin.version>
+    <zipkin.version>3.4.4</zipkin.version>
     <zipkin-reporter.version>3.4.0</zipkin-reporter.version>
     <jetcd-core.version>0.8.4</jetcd-core.version>
     <consul-client.version>1.4.2</consul-client.version>