* Added nodejs and npm v20 installation
This closes#762.
The required version can't be installed with `apt` since in the `espressif/idf:v5.4` image the default version is 18.
The `gzipper` package, on the other hand, requires at least version 20.
* Bumped node.js version to 22
As suggested in https://github.com/bitaxeorg/ESP-Miner/pull/763#discussion_r1995418993.
