Bump org.apache.kafka:kafka-clients from 3.9.0 to 4.0.0

Bumps org.apache.kafka:kafka-clients from 3.9.0 to 4.0.0.

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

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

Author: dependabot[bot]

build.gradle.kts

@@ -34,7 +34,7 @@ dependencies {
     val auth0JwtVersion = "4.5.0"
     val caffeineVersion = "3.2.0"
     val graphqlVersion = "8.3.0"
-    val kafkaVersion = "3.9.0"
+    val kafkaVersion = "4.0.0"
     val ktorVersion = "3.1.0"
     val logbackVersion = "1.5.16"
     val logstashVersion = "8.0"