Bump sass from 1.90.0 to 1.91.0 in /Plan/react/dashboard (#4247)

Bumps [sass](https://github.com/sass/dart-sass) from 1.90.0 to 1.91.0.
- [Release notes](https://github.com/sass/dart-sass/releases)
- [Changelog](https://github.com/sass/dart-sass/blob/main/CHANGELOG.md)
- [Commits](sass/dart-sass@1.90.0...1.91.0)

---
updated-dependencies:
- dependency-name: sass
  dependency-version: 1.91.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

Plan/react/dashboard/package.json

@@ -42,7 +42,7 @@
     "react-router": "^7.8.2",
     "react-select": "^5.10.2",
     "react-transition-group": "^4.4.5",
-    "sass": "^1.90.0",
+    "sass": "^1.91.0",
     "source-map-explorer": "^2.5.2",
     "swagger-ui": "^5.28.0",
     "web-vitals": "^5.1.0"

Plan/react/dashboard/yarn.lock

@@ -3004,10 +3004,10 @@ safe-buffer@^5.1.0, safe-buffer@^5.2.1:
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.2.1.tgz#1eaf9fa9bdb1fdd4ec75f58f9cdb4e6b7827eec6"
   integrity sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==
 
-sass@^1.90.0:
-  version "1.90.0"
-  resolved "https://registry.yarnpkg.com/sass/-/sass-1.90.0.tgz#d6fc2be49c7c086ce86ea0b231a35bf9e33cb84b"
-  integrity sha512-9GUyuksjw70uNpb1MTYWsH9MQHOHY6kwfnkafC24+7aOMZn9+rVMBxRbLvw756mrBFbIsFg6Xw9IkR2Fnn3k+Q==
+sass@^1.91.0:
+  version "1.91.0"
+  resolved "https://registry.yarnpkg.com/sass/-/sass-1.91.0.tgz#7d4f7f624b35d43f78da1c339cab24426e28d7fa"
+  integrity sha512-aFOZHGf+ur+bp1bCHZ+u8otKGh77ZtmFyXDo4tlYvT7PWql41Kwd8wdkPqhhT+h2879IVblcHFglIMofsFd1EA==
   dependencies:
     chokidar "^4.0.0"
     immutable "^5.0.2"