Bump org.apache.kafka:kafka-clients from 3.7.1 to 3.8.1 (#5123)

Bumps org.apache.kafka:kafka-clients from 3.7.1 to 3.8.1.

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

eventmesh-connectors/eventmesh-connector-kafka/build.gradle

@@ -19,7 +19,7 @@ dependencies {
     implementation project(":eventmesh-common")
     implementation project(":eventmesh-openconnect:eventmesh-openconnect-java")
     implementation 'io.cloudevents:cloudevents-kafka:2.5.0'
-    implementation 'org.apache.kafka:kafka-clients:3.7.1'
+    implementation 'org.apache.kafka:kafka-clients:3.8.1'
     compileOnly 'org.projectlombok:lombok'
     annotationProcessor 'org.projectlombok:lombok'
 }

eventmesh-storage-plugin/eventmesh-storage-kafka/build.gradle

@@ -22,7 +22,7 @@ dependencies {
     implementation group: 'io.cloudevents', name: 'cloudevents-kafka', version: '2.5.0'
 
     // https://mvnrepository.com/artifact/org.apache.kafka/kafka-clients
-    implementation 'org.apache.kafka:kafka-clients:3.7.1'
+    implementation 'org.apache.kafka:kafka-clients:3.8.1'
 
     testImplementation 'org.junit.jupiter:junit-jupiter'