updated node version

Author: susonwaiba

.env.sample

@@ -53,7 +53,7 @@ PHP_ENABLE_XDEBUG=0
 
 # node version
 # ie: 20.x, 18.x, 17.x or any valid version
-NODE_VERSION=16.x
+NODE_VERSION=20.x
 
 ###< nodejs configuration ###
 #############################