npm version dependency missing from the documentation (OSOE-827)

[dministro]

NodeJs-Extensions/Lombiq.NodeJs.Extensions/scripts/get-project-directory.js

Line 8 in ad81728

return process.env.npm_config_local_prefix ?? process.env.LOMBIQ_NODEJS_EXTENSIONS_PROJECT_DIRECTORY;

The npm_config_local_prefix environment variable (introduced in npm v7.22.0, changelog) is used, but this version dependency is not mentioned in the documentation.

Jira issue

[sarahelsaig]

If the above linked line is falsey, it should also throw an exception explaining the problem because people tend to not read documentations.