Bump the npm group with 1 update

Bumps the npm group with 1 update: [grunt-nw-builder](https://github.com/nwjs/grunt-nw-builder).


Updates `grunt-nw-builder` from 4.0.1 to 4.6.1
- [Release notes](https://github.com/nwjs/grunt-nw-builder/releases)
- [Commits](https://github.com/nwjs/grunt-nw-builder/commits/v4.6.1)

---
updated-dependencies:
- dependency-name: grunt-nw-builder
  dependency-type: direct:development
  update-type: version-update:semver-minor
  dependency-group: npm
...

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