build(deps): bump org.apache.kafka:kafka-clients from 4.1.1 to 4.2.0 (#506)

Bumps org.apache.kafka:kafka-clients from 4.1.1 to 4.2.0.

---
updated-dependencies:
- dependency-name: org.apache.kafka:kafka-clients
  dependency-version: 4.2.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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gradle/libs.versions.toml

@@ -8,7 +8,7 @@ okhttp-mockwebserver = "5.3.2"
 restAssured = "6.0.0"
 rsApi = "4.0.0"
 testcontainers = "1.21.4"
-kafkaClients = "4.1.1"
+kafkaClients = "4.2.0"
 
 [libraries]
 edc-boot = { module = "org.eclipse.edc:boot", version.ref = "edc" }