build(deps): bump @hashicorp/flight-icons in /website

Bumps [@hashicorp/flight-icons](https://github.com/hashicorp/design-system/tree/HEAD/packages/flight-icons) from 1.3.0 to 3.13.0.
- [Release notes](https://github.com/hashicorp/design-system/releases)
- [Changelog](https://github.com/hashicorp/design-system/blob/main/packages/flight-icons/CHANGELOG.md)
- [Commits](https://github.com/hashicorp/design-system/commits/@hashicorp/[email protected]/packages/flight-icons)

---
updated-dependencies:
- dependency-name: "@hashicorp/flight-icons"
  dependency-version: 3.13.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]