Bump gulp-svgmin from 1.2.4 to 4.1.0

Bumps [gulp-svgmin](https://github.com/ben-eb/gulp-svgmin) from 1.2.4 to 4.1.0.
- [Release notes](https://github.com/ben-eb/gulp-svgmin/releases)
- [Changelog](https://github.com/ben-eb/gulp-svgmin/blob/master/CHANGELOG.md)
- [Commits](ben-eb/gulp-svgmin@v1.2.4...v4.1.0)

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

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