Cannot install with yarn on Node 8 or 9

[Darep]

The yn package was updated to v4.0.0 in [email protected]. It seems that [email protected] now requires node >= 10 so ts-node v8.6.0 and newer might error when installing/starting on Node.js 8 or 9. At least when using yarn.

For example, on a fresh Node.js v8.12 Docker container:

$ docker run --rm -it node:8.12-alpine yarn add ts-node@latest
yarn add v1.9.4
info No lockfile found.
[1/4] Resolving packages...
[2/4] Fetching packages...
error [email protected]: The engine "node" is incompatible with this module. Expected version ">=10".
error Found incompatible module
info Visit https://yarnpkg.com/en/docs/cli/add for documentation about this command.

Same in the Node.js 9 image:

$ docker run --rm -it node:9 yarn add ts-node@latest
yarn add v1.5.1
info No lockfile found.
[1/4] Resolving packages...
[2/4] Fetching packages...
error [email protected]: The engine "node" is incompatible with this module. Expected version ">=10".
error An unexpected error occurred: "Found incompatible module".
info If you think this is a bug, please open a bug report with the information provided in "/yarn-error.log".
info Visit https://yarnpkg.com/en/docs/cli/add for documentation about this command.

Contrary to yarn, npm doesn't seem to fail atleast on the CLI. npm just outputs a warning:

npm WARN notsup Unsupported engine for [email protected]: wanted: {"node":">=10"} (current: {"node":"8.12.0","npm":"6.13.6"})
npm WARN notsup Not compatible with your version of node/npm: [email protected]

Though e.g. pm2 install typescript uses npm and on Node 8 or 9 it will actually fail 😄

[cspotcode]

Closing as a duplicate of #940.