Migrate to Deploying using Maven Central (#103)

Co-authored-by: Mohammed Ehab <moehabe@amazon.com>

Author: M-Elsaeed

aws-lambda-java-runtime-interface-client/pom.xml

@@ -4,7 +4,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.amazonaws</groupId>
     <artifactId>aws-lambda-java-runtime-interface-client</artifactId>
-    <version>2.8.3</version>
+    <version>2.8.4</version>
     <packaging>jar</packaging>
 
     <name>AWS Lambda Java Runtime Interface Client</name>