test(jest.config): remove "isolatedModules"

Author: hasezoey

packages/mongodb-memory-server-core/jest.config.js

@@ -3,7 +3,6 @@ module.exports = {
   globals: {
     'ts-jest': {
       tsconfig: '<rootDir>/tsconfig.json',
-      isolatedModules: true,
       diagnostics: false,
     },
   },