chore(deps-dev): bump nx from 15.4.2 to 15.8.6

Bumps [nx](https://github.com/nrwl/nx/tree/HEAD/packages/nx) from 15.4.2 to 15.8.6.
- [Release notes](https://github.com/nrwl/nx/releases)
- [Commits](https://github.com/nrwl/nx/commits/15.8.6/packages/nx)

---
updated-dependencies:
- dependency-name: nx
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]