fix: 🐛 custom node_module path alias

[hzzcc]

I use docker, and ln -s custom node_modules path for cache, but give the error

/npm/node_modules/@cypress/instrument-cra/index.js:72
require.cache[webpackConfigPath].exports = fakeConfig
                                         ^
TypeError: Cannot set property 'exports' of undefined

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[RHeynsZa]

Please merge this, I need this too

[bahmutov]

It is up to the Cypress team to merge, unfortunately I cannot do it