build(deps): bump sass-graph from 2.2.5 to 4.0.0

Bumps [sass-graph](https://github.com/xzyfer/sass-graph) from 2.2.5 to 4.0.0.
- [Release notes](https://github.com/xzyfer/sass-graph/releases)
- [Changelog](https://github.com/xzyfer/sass-graph/blob/master/CHANGELOG.md)
- [Commits](xzyfer/sass-graph@v2.2.5...v4.0.0)

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

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

package.json

@@ -65,7 +65,7 @@
     "node-gyp": "^7.1.0",
     "npmlog": "^5.0.0",
     "request": "^2.88.0",
-    "sass-graph": "2.2.5",
+    "sass-graph": "4.0.0",
     "stdout-stream": "^1.4.0",
     "true-case-path": "^1.0.2"
   },