chore(deps): bump hexo-util from 2.7.0 to 3.1.0

Bumps [hexo-util](https://github.com/hexojs/hexo-util) from 2.7.0 to 3.1.0.
- [Release notes](https://github.com/hexojs/hexo-util/releases)
- [Commits](hexojs/hexo-util@2.7.0...v3.1.0)

---
updated-dependencies:
- dependency-name: hexo-util
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

package.json

@@ -35,7 +35,7 @@
     "hexo-pagination": "^2.0.0",
     "hexo-renderer-inferno": "^0.1.3",
     "hexo-renderer-stylus": "^2.0.0",
-    "hexo-util": "^2.4.0",
+    "hexo-util": "^3.1.0",
     "inferno": "^7.3.3",
     "inferno-create-element": "^7.3.3",
     "moment": "^2.22.2",