We accidentally started shipping `.mjs` files for the following
modules (or module paths) as of the v12.1.0-next.2 tag:
- `@angular/compiler-cli`
- `@angular/common/locales`
- `@angular/bazel`
- `@angular/benchpress`
- `@angular/core/schematics`
- `@angular/elements/schematics`
- `@angular/language-service`
- `@angular/localize/schematics`,
- `@angular/localize/tools`
- `zone.js`
This did not cause any issues for consumers but we
want to not ship these files without having them wired
up in `package.json` files. We accidentally started shipping
these `.mjs` files due to a NodeJS update which wired up the
other JavaScript module output flavors in the `pkg_npm` rule.
https://github.com/bazelbuild/rules_nodejs/commit/911529fd364eb3ee1b8ecdc568a9fcf38a8b55ca
PR Close#42809
Paul Gschwendtner
4e73b8820a