[FLINK-36422][docs] Fix PyFlink jar download link

Author: z3d1k

docs/content.zh/docs/connectors/datastream/kafka.md

@@ -45,7 +45,7 @@ Apache Flink 集成了通用的 Kafka 连接器，它会尽力与 Kafka client 
 Flink 目前的流连接器还不是二进制发行版的一部分。
 [在此处]({{< ref "docs/dev/configuration/overview" >}})可以了解到如何链接它们，从而在集群中运行。
 
-{{< py_download_link "kafka" >}}
+{{< py_connector_download_link "kafka" >}}
 
 ## Kafka Source
 {{< hint info >}}

docs/content/docs/connectors/datastream/kafka.md

@@ -41,7 +41,7 @@ For details on Kafka compatibility, please refer to the official [Kafka document
 Flink's streaming connectors are not part of the binary distribution.
 See how to link with them for cluster execution [here]({{< ref "docs/dev/configuration/overview" >}}).
 
-{{< py_download_link "kafka" >}}
+{{< py_connector_download_link "kafka" >}}
 
 ## Kafka Source
 {{< hint info >}}