Bump sass from 1.43.3 to 1.43.4

Bumps [sass](https://github.com/sass/dart-sass) from 1.43.3 to 1.43.4.
- [Release notes](https://github.com/sass/dart-sass/releases)
- [Changelog](https://github.com/sass/dart-sass/blob/main/CHANGELOG.md)
- [Commits](sass/dart-sass@1.43.3...1.43.4)

---
updated-dependencies:
- dependency-name: sass
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -89,7 +89,7 @@
     "prettier": "2.4.1",
     "puppeteer": "10.4.0",
     "puppeteer-to-istanbul": "1.4.0",
-    "sass": "1.43.3",
+    "sass": "1.43.4",
     "selenium-webdriver": "3.6.0",
     "sinon": "11.1.2",
     "webidl2": "24.1.2",