chore(deps-dev): bump hexo from 4.2.1 to 5.0.0

Bumps [hexo](https://github.com/hexojs/hexo) from 4.2.1 to 5.0.0.
- [Release notes](https://github.com/hexojs/hexo/releases)
- [Commits](hexojs/hexo@4.2.1...5.0.0)

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

package.json

@@ -34,7 +34,7 @@
     "chai": "^4.2.0",
     "eslint": "^7.0.0",
     "eslint-config-hexo": "^4.0.0",
-    "hexo": "^4.2.0",
+    "hexo": "^5.0.0",
     "hexo-front-matter": "^1.0.0",
     "mocha": "^8.0.1",
     "nyc": "^15.0.0",