Bump @nx/workspace from 19.2.0 to 19.6.4

Bumps [@nx/workspace](https://github.com/nrwl/nx/tree/HEAD/packages/workspace) from 19.2.0 to 19.6.4.
- [Release notes](https://github.com/nrwl/nx/releases)
- [Commits](https://github.com/nrwl/nx/commits/19.6.4/packages/workspace)

---
updated-dependencies:
- dependency-name: "@nx/workspace"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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