build(deps): bump hexo from 6.3.0 to 7.0.0 (#72)

Bumps [hexo](https://github.com/hexojs/hexo) from 6.3.0 to 7.0.0.
- [Release notes](https://github.com/hexojs/hexo/releases)
- [Commits](https://github.com/hexojs/hexo/compare/6.3.0...v7.0.0)

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

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

package.json

@@ -12,7 +12,7 @@
     "version": ""
   },
   "dependencies": {
-    "hexo": "^6.3.0",
+    "hexo": "^7.0.0",
     "hexo-generator-archive": "^2.0.0",
     "hexo-generator-category": "^2.0.0",
     "hexo-generator-index": "^3.0.0",