Bump sha.js and node-libs-browser

Bumps [sha.js](https://github.com/crypto-browserify/sha.js) to 2.4.12 and updates ancestor dependency [node-libs-browser](https://github.com/webpack/node-libs-browser). These dependencies need to be updated together.


Updates `sha.js` from 2.2.6 to 2.4.12
- [Changelog](https://github.com/browserify/sha.js/blob/master/CHANGELOG.md)
- [Commits](browserify/sha.js@v2.2.6...v2.4.12)

Updates `node-libs-browser` from 0.5.3 to 2.2.1
- [Release notes](https://github.com/webpack/node-libs-browser/releases)
- [Commits](webpack/node-libs-browser@v0.5.3...v2.2.1)

---
updated-dependencies:
- dependency-name: sha.js
  dependency-version: 2.4.12
  dependency-type: indirect
- dependency-name: node-libs-browser
  dependency-version: 2.2.1
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]