New `react-scripts` uses `css-loader` >= v4 that has a new `IdentName` generation. So it needs updating `generic-names` in package.json to [v3.0.0](https://github.com/css-modules/generic-names/releases/tag/v3.0.0). As a temporary [solution](https://github.com/gajus/babel-plugin-react-css-modules/issues/279#issuecomment-656549514).
