Directory import not supported resolving ES modules (fast-deep-equal\es6)

**Describe the bug**
Getting this error when running vitest and angular 22

Error: Directory import '\node_modules\fast-deep-equal\es6' is not supported resolving ES modules imported from '\node_modules@cubejs-client\ngx\fesm2022\cubejs-client-ngx.mjs
Did you mean to import "fast-deep-equal/es6/index.js"?

I tried to use resolve.alias, optimizeDeps, inline Deps in vitest config, but with no success.

**Expected behavior**
No directory import

**Version:**
1.6.66

Start by reproducing the error with Vitest and Angular 22, then inspect the Vitest configuration and the @cubejs-client/ngx import of fast-deep-equal/es6. Compare the resolved package entry with the suggested fast-deep-equal/es6/index.js path; done means the test setup resolves the ES module without a directory-import error.

Written by the indexing model from the issue text.