Update confluent-kafka requirement from >=2.0.0 to >=2.14.0

Updates the requirements on [confluent-kafka](https://github.com/confluentinc/confluent-kafka-python) to permit the latest version.
- [Release notes](https://github.com/confluentinc/confluent-kafka-python/releases)
- [Changelog](https://github.com/confluentinc/confluent-kafka-python/blob/master/CHANGELOG.md)
- [Commits](confluentinc/confluent-kafka-python@2.0.2rc1.dev1...v2.14.0)

---
updated-dependencies:
- dependency-name: confluent-kafka
  dependency-version: 2.14.0
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pyproject.toml

@@ -45,7 +45,7 @@ dependencies = [
 [project.optional-dependencies]
 psutil = ["psutil>=7.2.0"]
 celery = ["celery>=5.0.0"]
-kafka = ["confluent-kafka>=2.0.0"]
+kafka = ["confluent-kafka>=2.14.0"]
 rabbitmq = ["aio-pika>=9.0.0"]
 redis = ["redis>=4.2.0"]
 rss = ["httpx>=0.27.0", "feedparser>=6.0.0"]