Bump tar and npm in /frontend-container

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


Updates `tar` from 6.2.0 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@v6.2.0...v6.2.1)

Updates `npm` from 10.2.5 to 10.5.2
- [Release notes](https://github.com/npm/cli/releases)
- [Changelog](https://github.com/npm/cli/blob/latest/CHANGELOG.md)
- [Commits](npm/cli@v10.2.5...v10.5.2)

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

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