build(deps): bump org.apache.kafka:kafka-clients from 3.7.0 to 3.8.0

Bumps org.apache.kafka:kafka-clients from 3.7.0 to 3.8.0.

---
updated-dependencies:
- dependency-name: org.apache.kafka:kafka-clients
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

cluster-api/pom.xml

@@ -22,7 +22,7 @@
         <java.version>17</java.version>
         <!-- the list is sorted-->
         <apache.commons.lang.version>3.16.0</apache.commons.lang.version>
-        <kafka.version>3.7.0</kafka.version>
+        <kafka.version>3.8.0</kafka.version>
         <mockserver.version>5.15.0</mockserver.version>
         <spring-kafka-test.version>3.2.3</spring-kafka-test.version>
     </properties>