* Pnpm has started wanting to update `@storybook/builder-webpack5`
  with every upstream release. Giving the relevant overrides a version
  makes it stick with the lockfile.
* `@automattic/format-currency` seems a bit outdated. We can clean up a
  lot of the old deps we have in pnpm-lock.yaml by updating its dep on
  `i18n-calypso` from 4.x to 5.x, and in turn updating `i18n-calypso`'s
  dep on `interpolate-components` 1.1.0 too.
* `jest-environment-enzyme` is [supposedly not dead][1], but still isn't
  being updated for several months. For our purposes at least it seems
  to work fine with jest-environment-jsdom 27.
* Looks like we've dropped the dep on whatever old version of
  `terser-webpack-plugin` had a dep on an old version of
  `serialize-javascript`, so drop the override.

[1]: enzymejs/enzyme-matchers#353

…-overrides