module: runtime deprecate invalid package.json main entries

PR-URL: https://github.com/nodejs/node/pull/37204
Fixes: https://github.com/nodejs/node/issues/26588


Reviewed-By: Guy Bedford <guybedford@gmail.com>
Reviewed-By: Geoffrey Booth <webmaster@geoffreybooth.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>