Update scrypted-install.sh

node.js v20

install/scrypted-install.sh

@@ -68,13 +68,12 @@ msg_ok "Installed GStreamer"
 msg_info "Setting up Node.js Repository"
 mkdir -p /etc/apt/keyrings
 curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key | gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg
-echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_18.x nodistro main" >/etc/apt/sources.list.d/nodesource.list
+echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_20.x nodistro main" >/etc/apt/sources.list.d/nodesource.list
 msg_ok "Set up Node.js Repository"
 
 msg_info "Installing Node.js/npm"
 $STD apt-get update
 $STD apt-get install -y nodejs
-$STD apt-get install -y npm
 msg_ok "Installed Node.js/npm"
 
 msg_info "Updating Python3"