Add handling of Less module files to jest config creation utility

Author: hbj

packages/react-scripts/scripts/utils/createJestConfig.js

@@ -51,12 +51,12 @@ module.exports = (resolve, rootDir, isEjecting) => {
     },
     transformIgnorePatterns: [
       '[/\\\\]node_modules[/\\\\].+\\.(js|jsx|mjs|cjs|ts|tsx)$',
-      '^.+\\.module\\.(css|sass|scss)$',
+      '^.+\\.module\\.(css|sass|scss|less)$',
     ],
     modulePaths: modules.additionalModulePaths || [],
     moduleNameMapper: {
       '^react-native$': 'react-native-web',
-      '^.+\\.module\\.(css|sass|scss)$': 'identity-obj-proxy',
+      '^.+\\.module\\.(css|sass|scss|less)$': 'identity-obj-proxy',
       ...(modules.jestAliases || {}),
     },
     moduleFileExtensions: [...paths.moduleFileExtensions, 'node'].filter(