Repository: storybook
Issue: Cannot run webpack 5 version in lit project
Labels: bug,needs triage

**Describe the bug**
In a new lit project, add storybook webpack 5 version, and `npm run storybook` get following error.
```
> @lit/lit-starter-ts@1.0.4 storybook
> start-storybook -p 6006

info @storybook/web-components v6.5.9
info
✔ Port 6006 is not available. Would you like to run Storybook on port 6007 instead? … yes
info => Loading presets
info => Using prebuilt manager
info Addon-docs: using MDX1
info => Using implicit CSS loaders
info => Using default Webpack5 setup
<i> [webpack-dev-middleware] wait until bundle finished
99% done plugins webpack-hot-middlewarewebpack built preview 03b44d7f2834191a4d2c in 6474ms
ModuleParseError: Module parse failed: 'import' and 'export' may appear only with 'sourceType: module' (1:0)
File was processed with these loaders:
 * ./node_modules/babel-loader/lib/index.js
You may need an additional loader to handle the result of these loaders.
> import "/Users/ma/WebstormProjects/lit-storybook/node_modules/core-js/modules/es.object.keys.js";
| import "/Users/ma/WebstormProjects/lit-storybook/node_modules/core-js/modules/es.symbol.js";
| import "/Users/ma/WebstormProjects/lit-storybook/node_modules/core-js/modules/es.array.filter.js";
    at handleParseError (/Users/ma/WebstormProjects/lit-storybook/node_modules/@storybook/builder-webpack5/node_modules/webpack/lib/NormalModule.js:976:19)
    at /Users/ma/WebstormProjects/lit-storybook/node_modules/@storybook/builder-webpack5/node_modules/webpack/lib/NormalModule.js:1095:5
    at processResult (/Users/ma/WebstormProjects/lit-storybook/node_modules/@storybook/builder-webpack5/node_modules/webpack/lib/NormalModule.js:800:11)
    at /Users/ma/WebstormProjects/lit-storybook/node_modules/@storybook/builder-webpack5/node_modules/webpack/lib/NormalModule.js:860:5
    at /Users/ma/WebstormProjects/lit-storybook/node_modules/@storybook/builder-webpack5/node_modules/loader-runner/lib/LoaderRunner.js:407:3
    at iterateNormalLoaders (/Users/ma/WebstormProjects/lit-storybook/node_modules/@storybook/builder-webpack5/node_modules/loader-runner/lib/LoaderRunner.js:233:10)
    at iterateNormalLoaders (/Users/ma/WebstormProjects/lit-storybook/node_modules/@storybook/builder-webpack5/node_modules/loader-runner/lib/LoaderRunner.js:240:10)
    at /Users/ma/WebstormProjects/lit-storybook/node_modules/@storybook/builder-webpack5/node_modules/loader-runner/lib/LoaderRunner.js:255:3
    at context.callback (/Users/ma/WebstormProjects/lit-storybook/node_modules/@storybook/builder-webpack5/node_modules/loader-runner/lib/LoaderRunner.js:124:13)
    at /Users/ma/WebstormProjects/lit-storybook/node_modules/babel-loader/lib/index.js:59:71

WARN Broken build, fix the error above.
WARN You may need to refresh the browser.

info => Loading presets
99% done plugins webpack-hot-middlewarewebpack built preview 96c2e9794b0864219fb8 in 291ms
```

**To Reproduce**
1. Init lit project from https://github.com/lit/lit-element-starter-ts
2. Install storybook `npx sb@next init --builder webpack5`
3. Add package.json with content `{"type": "commonjs"}` to .storybook directory
4. `npm run storybook`

reproduction repo: [https://github.com/ilp64/lit-storybook](https://github.com/ilp64/lit-storybook)

**System**
Environment Info:

  System:
    OS: macOS 11.4
    CPU: (8) x64 Intel(R) Core(TM) i7-4870HQ CPU @ 2.50GHz
  Binaries:
    Node: 16.13.1 - ~/.nvm/versions/node/v16.13.1/bin/node
    Yarn: 1.22.10 - /usr/local/bin/yarn
    npm: 8.1.2 - ~/.nvm/versions/node/v16.13.1/bin/npm
  Browsers:
    Chrome: 103.0.5060.114
    Firefox: 97.0.1
    Safari: 14.1.1
  npmPackages:
    @storybook/addon-actions: ^6.5.9 => 6.5.9
    @storybook/addon-essentials: ^6.5.9 => 6.5.9
    @storybook/addon-links: ^6.5.9 => 6.5.9
    @storybook/builder-webpack5: ^6.5.9 => 6.5.9
    @storybook/manager-webpack5: ^6.5.9 => 6.5.9
    @storybook/web-components: ^6.5.9 => 6.5.9