chore(deps-dev): bump @siteup/cli from 4.0.1 to 5.0.0

Bumps [@siteup/cli](https://github.com/bcomnes/siteup-cli) from 4.0.1 to 5.0.0.
- [Release notes](https://github.com/bcomnes/siteup-cli/releases)
- [Changelog](https://github.com/bcomnes/siteup/blob/master/CHANGELOG.md)
- [Commits](https://github.com/bcomnes/siteup-cli/compare/v4.0.1...v5.0.0)

---
updated-dependencies:
- dependency-name: "@siteup/cli"
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -15,7 +15,7 @@
     "webassert": "3.0.2"
   },
   "devDependencies": {
-    "@siteup/cli": "^4.0.0-beta.0",
+    "@siteup/cli": "^5.0.0",
     "auto-changelog": "^2.0.0",
     "browser-sync": "^2.27.7",
     "dependency-check": "^4.1.0",