Bump hexo from 7.3.0 to 8.1.0

Bumps [hexo](https://github.com/hexojs/hexo) from 7.3.0 to 8.1.0.
- [Release notes](https://github.com/hexojs/hexo/releases)
- [Commits](hexojs/hexo@v7.3.0...v8.1.0)

---
updated-dependencies:
- dependency-name: hexo
  dependency-version: 8.1.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

package-lock.json

@@ -12,7 +12,7 @@
     "version": "7.3.0"
   },
   "dependencies": {
-    "hexo": "^7.0.0",
+    "hexo": "^8.1.0",
     "hexo-autonofollow": "^1.0.1",
     "hexo-directory-category": "^1.0.5",
     "hexo-generator-archive": "^2.0.0",