Suite test:esm fails under Node 21

[colonel-sanders]

Description

Mocking ESM works under Node 20 but not under Node 21

Issue

ES Module mocking does not appear to be working under Node 21.

Environment

• node -v output: Working under v20.5.0, failing under 21.0.0, failing under v21.6.1
• npm -v (or yarn --version) output: 9.8.0 under v20.x, 10.2.4 under v21.x
• npm ls testdouble (or yarn list testdouble) version: 3.20.2

Failing Test

8 out of 11 tests in the test:esm suite are failing under Node 21 but pass under Node 20

[colonel-sanders]

@giltayar Would really appreciate some of your node ESM loader magic here. Wish I had more background context to knock this one out myself.

[brianzinn]

Do you support v21 for ESM? I'm having some weird issues with replaceESM.
https://github.com/testdouble/testdouble.js/blob/main/.github/workflows/test.yml#L17