v2.3.1

Followup release to v2.3.0 to improve the error message shown when auto install is disabled (e.g. in CI environments) and a node polyfill is needed. This may occur for example when using automated dependency upgrade bots like renovate/dependabot.

This also fixes a bug where auto install did not work correctly in some cases, and pins all parcel dependency versions so that it is easier to pin parcel to a specific version in your project.