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] <[email protected]>

package.json

@@ -80,7 +80,7 @@
     "jest-environment-jsdom-sixteen": "^2.0.0",
     "jest-transform-stub": "^2.0.0",
     "lodash.debounce": "^4.0.8",
-    "node-sass": "^5.0.0",
+    "node-sass": "^7.0.0",
     "prettier": "^2.3.0",
     "ts-jest": "^26.5.6"
   }