next.js

8b360afb - [Memory] Add option to reduce memory usage caused by duplicate strings in webpack-sources (#66003)

[Memory] Add option to reduce memory usage caused by duplicate strings in webpack-sources (#66003) This PR adds a flag to Next.js to enable Webpack options to improve memory usage. See https://github.com/webpack/webpack-sources/pull/155 for a full description of the changes and impact on memory. This PR adds a patch to `webpack-sources` temporarily that contains the fixes as the real changes are iterated on to merge upstream in the `webpack/webpack-sources` repository. After that is done, the patch will be reverted and the latest `webpack-sources` version will be updated in Next.js.