[openapi-metadata] Support for CommonJS

[acs]

Description

Hi team!

We are trying to use openapi-metadata in a large TypeScript project which is based on CommonJS (we plan to migrate to ESM at some point but not yet). It seems that openapi-metadata does not support CommonJS (the TS compiler suggest to change 'moduleResolution' setting 'node16', 'nodenext', or 'bundler'.).

Do you plan to support CommonJS in openapi-metadata?

Than you for your effort and time in this great project

-- Alvaro

Proposal

Support CommonJS in openapi-metadata

Extra

• [ ] I’m willing to open a PR (see CONTRIBUTING.md)