Update browserslist in package.json

[massongit]

I update browserslist in package.json so that CVE-2021-23364 will be fixed when we install webpack as a package.

[webpack-bot]

For maintainers only:

• This needs to be documented (issue in webpack/webpack.js.org will be filed when merged)
• This needs to be backported to webpack 4 (issue will be created when merged)

[webpack-bot]

@massongit The most important CI builds failed. This way your PR can't be merged.

Please take a look at the CI results from azure (2 errors / 0 warnings) and appveyor (success) and fix these issues.

[massongit]

It doesn't seem to work with node 10, so I close it.