Bump @ionic/utils-fs from 3.1.5 to 3.1.7

Bumps [@ionic/utils-fs](https://github.com/ionic-team/ionic-cli) from 3.1.5 to 3.1.7.
- [Release notes](https://github.com/ionic-team/ionic-cli/releases)
- [Changelog](https://github.com/ionic-team/ionic-cli/blob/develop/CHANGELOG.md)
- [Commits](https://github.com/ionic-team/ionic-cli/compare/@ionic/[email protected]...@ionic/[email protected])

---
updated-dependencies:
- dependency-name: "@ionic/utils-fs"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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