Fix syntax errors in index.js

Author: rabianadeem-121

index.js

@@ -1,4 +1,4 @@
-onst { Client } = require('pg');
+const { Client } = require('pg');
 
 exports.handler = async (event) => {
 
@@ -67,3 +67,4 @@ const client = new Client({
     };
 };
 
+