build(deps): bump tar and lerna in /website

Bumps [tar](https://github.com/isaacs/node-tar) to 6.2.1 and updates ancestor dependency [lerna](https://github.com/lerna/lerna/tree/HEAD/packages/lerna). These dependencies need to be updated together.


Updates `tar` from 6.1.11 to 6.2.1
- [Release notes](https://github.com/isaacs/node-tar/releases)
- [Changelog](https://github.com/isaacs/node-tar/blob/main/CHANGELOG.md)
- [Commits](isaacs/node-tar@v6.1.11...v6.2.1)

Updates `lerna` from 7.4.2 to 8.1.6
- [Release notes](https://github.com/lerna/lerna/releases)
- [Changelog](https://github.com/lerna/lerna/blob/main/packages/lerna/CHANGELOG.md)
- [Commits](https://github.com/lerna/lerna/commits/v8.1.6/packages/lerna)

---
updated-dependencies:
- dependency-name: tar
  dependency-type: indirect
- dependency-name: lerna
  dependency-type: direct:production
...

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