doc: improve node.js+fips instructions
This PR improves the documentation for building Node.JS with openssl-3.0.0+quic with enabled FIPS support.
It adds missing but mandatory steps (e.g. make install
instruction in the openssl section) and provides a little more guidance. It also adds a hint that absolute paths need to be used to update the openssl.cnf
file by using the .include
instructions for fipsmodule.cnf
.