Bump gulp-svgstore from 7.0.1 to 8.0.0

Bumps [gulp-svgstore](https://github.com/w0rm/gulp-svgstore) from 7.0.1 to 8.0.0.
- [Release notes](https://github.com/w0rm/gulp-svgstore/releases)
- [Commits](w0rm/gulp-svgstore@7.0.1...8.0.0)

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

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