Update dashy-install.sh

tweak

install/dashy-install.sh

@@ -28,7 +28,7 @@ $STD bash <(curl -fsSL https://deb.nodesource.com/setup_16.x)
 msg_ok "Set up Node.js Repository"
 
 msg_info "Installing Node.js"
-$STD apt-get install -y nodejs 16.20.1
+$STD apt-get install -y nodejs=16.20.1
 $STD npm install -g pnpm
 msg_ok "Installed Node.js"