Bump sass from 1.51.0 to 1.70.0 in /LearningHub.Nhs.WebUI

Bumps [sass](https://github.com/sass/dart-sass) from 1.51.0 to 1.70.0.
- [Release notes](https://github.com/sass/dart-sass/releases)
- [Changelog](https://github.com/sass/dart-sass/blob/main/CHANGELOG.md)
- [Commits](sass/dart-sass@1.51.0...1.70.0)

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

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

Author: dependabot[bot]

LearningHub.Nhs.WebUI/package-lock.json

@@ -78,7 +78,7 @@
     "css-loader": "^5.2.7",
     "file-loader": "^6.2.0",
     "jest": "^27.5.1",
-    "sass": "^1.51.0",
+    "sass": "^1.70.0",
     "sass-loader": "^11.1.1",
     "style-loader": "^2.0.0",
     "ts-jest": "^27.1.5",