Fix Quick Tour Clients Version

Author: garyrussell

spring-kafka-docs/src/main/asciidoc/quick-tour.adoc

@@ -51,7 +51,7 @@ However, the quickest way to get started is to use https://start.spring.io[start
 
 This quick tour works with the following versions:
 
-* Apache Kafka Clients 3.1.x
+* Apache Kafka Clients 3.2.x
 * Spring Framework 6.0.x
 * Minimum Java version: 17