[Bug] (Linter) : Support of `.mjs` library dependency

[kpanot]

Package name

eslint-plugin, eslint-config

Package version

13.3.0

Reproduction steps

Associated to the comment: #3711 (comment)

• Create a module type package developed in .mts format in a monorepo (ex: @o3r/my-example).
• Exposed the generated .mjs files via package.json's main and exports fields.
• Refer to the entrypoint file in a tsconfig.json's paths mapping
• Import the package in a second module type package .mts file (ex: import * from '@o3r/my-example';)

Current result

The EsLint import/no-unresolved rule raises an error.

Expected result

Correctly resolve the dependency

Additional comments

Unsatisfying workarounds:

• Disable the rule at import instruction:

// eslint-disable-next-line import/no-unresolved -- Cannot resolve mjs file in current setup`

• import the inner package mjs file instead of rely on package.json (or tsconfig paths) links:

from '@o3r/my-example';

will become

from '@o3r/my-example/src/public_api.mjs';