cdc: fix kafka version table (#20475) (#20490)

Author: ti-chi-bot

ticdc/ticdc-sink-to-kafka.md

@@ -39,7 +39,7 @@ TiCDC 与支持的 Kafka 最低版本对应关系如下：
 | :-----------------------| :------------------ |
 | TiCDC >= v8.1.0          | 2.1.0              |
 | v7.6.0 <= TiCDC < v8.1.0 | 2.4.0              |
-| v7.5.2 <= TiCDC < v8.0.0 | 2.1.0              |
+| v7.5.2 <= TiCDC < v7.6.0 | 2.1.0              |
 | v7.5.0 <= TiCDC < v7.5.2 | 2.4.0              |
 | v6.5.0 <= TiCDC < v7.5.0 | 2.1.0              |
 | v6.1.0 <= TiCDC < v6.5.0 | 2.0.0              |