build(deps-dev): bump del from 6.1.1 to 7.1.0

Bumps [del](https://github.com/sindresorhus/del) from 6.1.1 to 7.1.0.
- [Release notes](https://github.com/sindresorhus/del/releases)
- [Commits](sindresorhus/del@v6.1.1...v7.1.0)

---
updated-dependencies:
- dependency-name: del
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package.json

@@ -80,7 +80,7 @@
     "codeclimate-test-reporter": "^0.5.1",
     "compare-versions": "^4.1.3",
     "concurrently": "^8.2.0",
-    "del": "^6.1.1",
+    "del": "^7.1.0",
     "ember-auto-import": "^2.6.3",
     "ember-cli": "~4.9.2",
     "ember-cli-app-version": "^6.0.1",