[FLINK-36420][Connectors/Kafka] Bump avro from 1.11.3 to 1.11.4

Author: dannycranmer

pom.xml

@@ -68,8 +68,8 @@ under the License.
         <scala-reflect.version>2.12.7</scala-reflect.version>
         <scala-library.version>2.12.7</scala-library.version>
         <snappy-java.version>1.1.10.5</snappy-java.version>
-        <avro.version>1.11.3</avro.version>
-		<guava.version>32.1.2-jre</guava.version>
+        <avro.version>1.11.4</avro.version>
+        <guava.version>32.1.2-jre</guava.version>
 
         <japicmp.skip>false</japicmp.skip>
         <japicmp.referenceVersion>1.17.0</japicmp.referenceVersion>