docs: explain node import swallowing error (#5401)

Fixes: [#5396](#5396)

Author: samuelhnrq

docs-next/src/content/docs/explainers/nodejs-native-esm-support.mdx

@@ -29,5 +29,7 @@ More information can be found in the [Node.js documentation](https://nodejs.org/
 - [Watch mode](../running/cli#--watch--w) does not support ES Module test files
 - [Custom reporters](../reporters/third-party) and [custom interfaces](../interfaces/third-party) can only be CommonJS files
 - [Configuration file](../running/configuring) can only be a CommonJS file (`.mocharc.js` or `.mocharc.cjs`)
+- Mocha in Node.js version 24.4.0 or older [silently ignored top level errors in ESM files](https://github.com/mochajs/mocha/issues/5396).
+  If you cannot upgrade to a newer Node.js version, you can add `--no-experimental-require-module` to the `NODE_OPTIONS` environment variable.
 - When using module-level mocks via libs like `proxyquire`, `rewiremock` or `rewire`, hold off on using ES modules for your test files.
   You can switch to using `testdouble`, which does support ESM.

docs/index.md

@@ -2131,6 +2131,8 @@ More information can be found in the [Node.js documentation](https://nodejs.org/
 - [Custom reporters](#third-party-reporters) and [custom interfaces](#interfaces)
   can only be CommonJS files
 - [Configuration file](#configuring-mocha-nodejs) can only be a CommonJS file (`.mocharc.js` or `.mocharc.cjs`)
+- Mocha in Node.js version 24.4.0 or older [silently ignored top level errors in ESM files](https://github.com/mochajs/mocha/issues/5396).
+  If you cannot upgrade to a newer Node.js version, you can add `--no-experimental-require-module` to the `NODE_OPTIONS` environment variable.
 - When using module-level mocks via libs like `proxyquire`, `rewiremock` or `rewire`,
   hold off on using ES modules for your test files. You can switch to using `testdouble`,
   which does support ESM.