Chore(deps): Bump tar, @tensorflow/tfjs-node and @tensorflow/tfjs-nod…

…e-gpu

Bumps [tar](https://github.com/isaacs/node-tar), [@tensorflow/tfjs-node](https://github.com/tensorflow/tfjs/tree/HEAD/tfjs-node) and [@tensorflow/tfjs-node-gpu](https://github.com/tensorflow/tfjs/tree/HEAD/tfjs-node-gpu). These dependencies needed to be updated together.

Updates `tar` from 6.1.15 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@v6.1.15...v6.2.1)

Updates `@tensorflow/tfjs-node` from 4.6.0 to 4.21.0
- [Release notes](https://github.com/tensorflow/tfjs/releases)
- [Changelog](https://github.com/tensorflow/tfjs/blob/master/cloudbuild-release.yml)
- [Commits](https://github.com/tensorflow/tfjs/commits/tfjs-v4.21.0/tfjs-node)

Updates `@tensorflow/tfjs-node-gpu` from 4.6.0 to 4.21.0
- [Release notes](https://github.com/tensorflow/tfjs/releases)
- [Changelog](https://github.com/tensorflow/tfjs/blob/master/cloudbuild-release.yml)
- [Commits](https://github.com/tensorflow/tfjs/commits/tfjs-v4.21.0/tfjs-node-gpu)

---
updated-dependencies:
- dependency-name: tar
  dependency-type: direct:production
- dependency-name: "@tensorflow/tfjs-node"
  dependency-type: direct:production
- dependency-name: "@tensorflow/tfjs-node-gpu"
  dependency-type: direct:production
...

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