Bump org.apache.kafka:kafka-clients from 3.9.0 to 4.0.0 in /log4j-parent (#3548)

* Bump org.apache.kafka:kafka-clients from 3.9.0 to 4.0.0 in /log4j-parent

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]>

* Revert "Bump org.apache.kafka:kafka-clients from 3.9.0 to 4.0.0 in /log4j-parent"

This reverts commit 448bf14.

* Limit Kafka version to 3.x

---------

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

Author: dependabot[bot]

.github/dependabot.yaml

@@ -159,6 +159,9 @@ updates:
       # SLF4J should not perform major version upgrades
       - dependency-name: "org.slf4j:slf4j-api"
         update-types: [ "version-update:semver-major" ]
+      # Kafka 4.x is not compatible with our appender
+      - dependency-name: "org.apache.kafka:*"
+        versions: [ "[4,)" ]
 
   - package-ecosystem: maven
     directories: