Node v17.0.0 changed to use OpenSSL 3.0 which no longer allows certain hashing
algorithms by default. This breaks the version of webpack and, as a
consequence, storybook we are currently using as it uses one of the now
disallowed algorithms (MD4). This is fixed in later versions of webpack where
support was added to generate MD4 hashs directly rather than via OpenSSL.

To resolve this in webpack I have updated to the earliest version that contains
their fix, v4.47.0. This version was chosen rather than a more recent version
so we don't have to update all of our dependencies at this time.

I have used a different approach for storybook as it would require considerable
time and effort to update to a version that uses a fixed version of webpack. We
just allow OpenSSL to use "legacy" algorithms using the
NODE_OPTIONS=--openssl-legacy-provider environment variable.

See for discussion:

- https://stackoverflow.com/a/73027407
- webpack/webpack#14532
- https://nodejs.org/en/blog/release/v17.0.0#openssl-30

See for fix in webpack:

- webpack/webpack#14584
- https://github.com/webpack/webpack/releases/tag/v4.47.0