fix(deps): update dependency com.configcat:configcat-java-client to v8.4.0 (#541)

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

Author: renovate[bot]

providers/configcat/pom.xml

@@ -20,7 +20,7 @@
         <dependency>
             <groupId>com.configcat</groupId>
             <artifactId>configcat-java-client</artifactId>
-            <version>8.3.0</version>
+            <version>8.4.0</version>
         </dependency>
 
         <dependency>