Bump version 7.4.3 (#170)

Author: matthewelwell

pom.xml

@@ -6,7 +6,7 @@
 
   <groupId>com.flagsmith</groupId>
   <artifactId>flagsmith-java-client</artifactId>
-  <version>7.4.2</version>
+  <version>7.4.3</version>
   <packaging>jar</packaging>
 
   <name>Flagsmith Java Client</name>