fix(deps): update dependency io.confluent:kafka-avro-serializer to v7.9.1 (#680)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

kafka-avro/spring-boot-kafka-avro-consumer/pom.xml

@@ -18,7 +18,7 @@
     <properties>
         <java.version>21</java.version>
         <avro.version>1.12.0</avro.version>
-        <confluent.version>7.9.0</confluent.version>
+        <confluent.version>7.9.1</confluent.version>
         <springdoc-openapi.version>2.8.8</springdoc-openapi.version>
 
         <spotless.version>2.44.4</spotless.version>

kafka-avro/spring-boot-kafka-avro-producer/pom.xml

@@ -18,7 +18,7 @@
     <properties>
         <java.version>21</java.version>
         <avro.version>1.12.0</avro.version>
-        <confluent.version>7.9.0</confluent.version>
+        <confluent.version>7.9.1</confluent.version>
         <springdoc-openapi.version>2.8.8</springdoc-openapi.version>
 
         <spotless.version>2.44.4</spotless.version>