fix(deps): update kafka.version to v4.2.0 (#224)

This PR contains the following updates:

| Package | Change |
[Age](https://docs.renovatebot.com/merge-confidence/) |
[Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|
|
[io.github.embeddedkafka:embedded-kafka_3](https://redirect.github.com/embeddedkafka/embedded-kafka)
| `4.1.0` → `4.2.0` |
![age](https://developer.mend.io/api/mc/badges/age/maven/io.github.embeddedkafka:embedded-kafka_3/4.2.0?slim=true)
|
![confidence](https://developer.mend.io/api/mc/badges/confidence/maven/io.github.embeddedkafka:embedded-kafka_3/4.1.0/4.2.0?slim=true)
|
| [org.apache.kafka:kafka-clients](https://kafka.apache.org) | `4.1.0` →
`4.2.0` |
![age](https://developer.mend.io/api/mc/badges/age/maven/org.apache.kafka:kafka-clients/4.2.0?slim=true)
|
![confidence](https://developer.mend.io/api/mc/badges/confidence/maven/org.apache.kafka:kafka-clients/4.1.0/4.2.0?slim=true)
|

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---

### Release Notes

<details>
<summary>embeddedkafka/embedded-kafka
(io.github.embeddedkafka:embedded-kafka_3)</summary>

###
[`v4.2.0`](https://redirect.github.com/embeddedkafka/embedded-kafka/releases/tag/v4.2.0)

[Compare
Source](https://redirect.github.com/embeddedkafka/embedded-kafka/compare/v4.1.0...v4.2.0)

#### What's Changed

- Upgrade Kafka to 4.2.0
- Upgrade Scala versions to 2.13.18 and 3.3.7
- Upgrade Jackson to 2.19.2

**Full Changelog**:
<embeddedkafka/embedded-kafka@v4.1.0...v4.2.0>

</details>

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kafka/pom.xml

@@ -16,7 +16,7 @@
 
   <properties>
     <maven.compiler.release>25</maven.compiler.release>
-    <kafka.version>4.1.0</kafka.version>
+    <kafka.version>4.2.0</kafka.version>
   </properties>
 
   <dependencies>