fix: module error (#1087)

* fix: module error

refactor all suffix of bundled scripts with commonjs module from 'js' to cjs

error:
ReferenceError: exports is not defined in ES module scope
This file is being treated as an ES module because it has a '.js' file extension and '.../rrweb/package.json' contains "type": "module". To treat it as a CommonJS script, rename it to use the '.cjs' file extension.

* update jest config files

packages/rrweb-snapshot/jest.config.js

@@ -1,5 +1,5 @@
 /** @type {import('ts-jest/dist/types').InitialOptionsTsJest} */
-module.exports = {
+export default {
   preset: 'ts-jest',
   testEnvironment: 'node',
   testMatch: ['**/**.test.ts'],