deps: bump unique-slug from 2.0.2 to 3.0.0 (#15)

Bumps [unique-slug](https://github.com/npm/unique-slug) from 2.0.2 to 3.0.0.
- [Release notes](https://github.com/npm/unique-slug/releases)
- [Changelog](https://github.com/npm/unique-slug/blob/main/CHANGELOG.md)
- [Commits](npm/unique-slug@v2.0.2...v3.0.0)

---
updated-dependencies:
- dependency-name: unique-slug
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -32,7 +32,7 @@
     "tap": "^16.3.0"
   },
   "dependencies": {
-    "unique-slug": "^2.0.2"
+    "unique-slug": "^3.0.0"
   },
   "files": [
     "bin/",