build(deps-dev): bump node-sass from 5.0.0 to 7.0.0

Bumps [node-sass](https://github.com/sass/node-sass) from 5.0.0 to 7.0.0.
- [Release notes](https://github.com/sass/node-sass/releases)
- [Changelog](https://github.com/sass/node-sass/blob/master/CHANGELOG.md)
- [Commits](sass/node-sass@v5.0.0...v7.0.0)

---
updated-dependencies:
- dependency-name: node-sass
  dependency-type: direct:development
...

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

package.json

@@ -43,7 +43,7 @@
     "fs-extra": "^9.0.1",
     "jest": "^26.6.3",
     "less": "^3.12.2",
-    "node-sass": "^5.0.0",
+    "node-sass": "^7.0.0",
     "postcss": "^8.2.7",
     "rollup": "^2.34.2",
     "stylus": "^0.54.8",