build(deps-dev): bump sass from 1.98.0 to 1.99.0 in /web

Bumps [sass](https://github.com/sass/dart-sass) from 1.98.0 to 1.99.0.
- [Release notes](https://github.com/sass/dart-sass/releases)
- [Changelog](https://github.com/sass/dart-sass/blob/main/CHANGELOG.md)
- [Commits](sass/dart-sass@1.98.0...1.99.0)

---
updated-dependencies:
- dependency-name: sass
  dependency-version: 1.99.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

web/package-lock.json

@@ -21,7 +21,7 @@
     "html-webpack-plugin": "^5.6.6",
     "mini-css-extract-plugin": "^2.10.1",
     "prettier": "^3.8.1",
-    "sass": "^1.98.0",
+    "sass": "^1.99.0",
     "sass-loader": "^16.0.7",
     "style-loader": "^4.0.0",
     "webpack": "^5.105.4",