Bump grunt-nw-builder from 4.7.4 to 4.7.5 in the npm group

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


Updates `grunt-nw-builder` from 4.7.4 to 4.7.5
- [Release notes](https://github.com/nwjs/grunt-nw-builder/releases)
- [Commits](https://github.com/nwjs/grunt-nw-builder/commits)

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

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