chore(deps): bump shell-quote and @docusaurus/core

Bumps [shell-quote](https://github.com/ljharb/shell-quote) to 1.8.1 and updates ancestor dependency [@docusaurus/core](https://github.com/facebook/docusaurus/tree/HEAD/packages/docusaurus). These dependencies need to be updated together.


Updates `shell-quote` from 1.7.2 to 1.8.1
- [Changelog](https://github.com/ljharb/shell-quote/blob/main/CHANGELOG.md)
- [Commits](ljharb/shell-quote@v1.7.2...v1.8.1)

Updates `@docusaurus/core` from 2.0.0-beta.6 to 2.4.3
- [Release notes](https://github.com/facebook/docusaurus/releases)
- [Changelog](https://github.com/facebook/docusaurus/blob/main/CHANGELOG.md)
- [Commits](https://github.com/facebook/docusaurus/commits/v2.4.3/packages/docusaurus)

---
updated-dependencies:
- dependency-name: shell-quote
  dependency-type: indirect
- dependency-name: "@docusaurus/core"
  dependency-type: direct:production
...

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