build(deps): bump node-sass from 4.12.0 to 4.14.1 (#20497)

Bumps [node-sass](https://github.com/sass/node-sass) from 4.12.0 to 4.14.1.
- [Release notes](https://github.com/sass/node-sass/releases)
- [Changelog](https://github.com/sass/node-sass/blob/master/CHANGELOG.md)
- [Commits](sass/node-sass@v4.12.0...v4.14.1)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
(cherry picked from commit 7beb952)

Author: dependabot[bot]