Bump sass from 1.38.2 to 1.39.0 in /frontend

Bumps [sass](https://github.com/sass/dart-sass) from 1.38.2 to 1.39.0.
- [Release notes](https://github.com/sass/dart-sass/releases)
- [Changelog](https://github.com/sass/dart-sass/blob/main/CHANGELOG.md)
- [Commits](https://github.com/sass/dart-sass/compare/1.38.2...1.39.0)

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

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

frontend/package.json

@@ -17,7 +17,7 @@
         "lodash.clonedeep": "^4.5.0",
         "postcss": "^8.1.14",
         "resolve-url-loader": "^4.0.0",
-        "sass": "^1.37.0",
+        "sass": "^1.39.0",
         "sass-loader": "^12.0.0",
         "vue-i18n": "^8.24.2",
         "vue-loader": "^15",

frontend/yarn.lock

@@ -5698,10 +5698,10 @@ sass-loader@^12.0.0:
     klona "^2.0.4"
     neo-async "^2.6.2"
 
-sass@^1.37.0:
-  version "1.38.2"
-  resolved "https://registry.yarnpkg.com/sass/-/sass-1.38.2.tgz#970045d9966180002a8c8f3820fc114cddb42822"
-  integrity sha512-Bz1fG6qiyF0FX6m/I+VxtdVKz1Dfmg/e9kfDy2PhWOkq3T384q2KxwIfP0fXpeI+EyyETdOauH+cRHQDFASllA==
+sass@^1.39.0:
+  version "1.39.0"
+  resolved "https://registry.yarnpkg.com/sass/-/sass-1.39.0.tgz#6c64695d1c437767c8f1a4e471288e831f81d035"
+  integrity sha512-F4o+RhJkNOIG0b6QudYU8c78ZADKZjKDk5cyrf8XTKWfrgbtyVVXImFstJrc+1pkQDCggyidIOytq6gS4gCCZg==
   dependencies:
     chokidar ">=3.0.0 <4.0.0"