support for ECMAScript modules

[didiercolens]

now that ESM are "the official standard format to package JavaScript code for reuse" and that the feature is stable, are there plans to support them in express-openapi ?

My use case is that I have a handler that uses got and since version 12 it no longer supports cjs modules, so I can't upgrade it unless I can convert my file to an ES module, but then express-openapi would not import it.

[robertkiel]

See https://github.com/kogosoftwarellc/open-api/pull/810