Bumped Node.js client version (#2105)

Author: yuce

docs/antora.yml

@@ -36,7 +36,7 @@ asciidoc:
     # https://github.com/hazelcast/hazelcast-python-client/releases
     page-latest-supported-python-client: '5.6.0'
     # https://github.com/hazelcast/hazelcast-nodejs-client/releases
-    page-latest-supported-nodejs-client: '5.3.0'
+    page-latest-supported-nodejs-client: '5.6.0'
     # https://github.com/hazelcast/hazelcast-commandline-client/releases
     page-latest-supported-clc: '5.5.1'
     open-source-product-name: 'Community Edition'