chore: Bump gulp-sass from 5.1.0 to 6.0.0 (#900)

Bumps [gulp-sass](https://github.com/dlmanning/gulp-sass) from 5.1.0 to 6.0.0.
- [Release notes](https://github.com/dlmanning/gulp-sass/releases)
- [Changelog](https://github.com/dlmanning/gulp-sass/blob/master/CHANGELOG.md)
- [Commits](https://github.com/dlmanning/gulp-sass/compare/v5.1.0...v6.0.0)

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

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

package.json

@@ -30,7 +30,7 @@
     "gulp-postcss": "^10.0.0",
     "gulp-rename": "^2.0.0",
     "gulp-run": "^1.7.1",
-    "gulp-sass": "^5.1.0",
+    "gulp-sass": "^6.0.0",
     "gulp-sourcemaps": "^3.0.0",
     "gulp-terser": "^2.1.0",
     "localtunnel": "^2.0.2",