Bump sass from 1.26.8 to 1.26.9

Bumps [sass](https://github.com/sass/dart-sass) from 1.26.8 to 1.26.9.
- [Release notes](https://github.com/sass/dart-sass/releases)
- [Changelog](https://github.com/sass/dart-sass/blob/master/CHANGELOG.md)
- [Commits](https://github.com/sass/dart-sass/compare/1.26.8...1.26.9)

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

package.json

@@ -21,7 +21,7 @@
         "react": "^16.2.0",
         "react-dom": "^16.2.0",
         "resolve-url-loader": "^3.1.0",
-        "sass": "^1.26.8",
+        "sass": "^1.26.9",
         "sass-loader": "^8.0.0"
     },
     "dependencies": {