Bump monocart-coverage-reports from 2.7.10 to 2.8.1 (maplibre#4106)

Bumps [monocart-coverage-reports](https://github.com/cenfun/monocart-coverage-reports) from 2.7.10 to 2.8.1.
- [Release notes](https://github.com/cenfun/monocart-coverage-reports/releases)
- [Changelog](https://github.com/cenfun/monocart-coverage-reports/blob/main/CHANGELOG.md)
- [Commits](cenfun/monocart-coverage-reports@2.7.10...2.8.1)

---
updated-dependencies:
- dependency-name: monocart-coverage-reports
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

package.json

@@ -108,7 +108,7 @@
     "junit-report-builder": "^3.2.1",
     "minimist": "^1.2.8",
     "mock-geolocation": "^1.0.11",
-    "monocart-coverage-reports": "^2.7.10",
+    "monocart-coverage-reports": "^2.8.1",
     "nise": "^5.1.9",
     "npm-font-open-sans": "^1.1.0",
     "npm-run-all": "^4.1.5",