build(deps-dev): bump js-cookie from 3.0.5 to 3.0.8 in /src/store-admin

Bumps [js-cookie](https://github.com/js-cookie/js-cookie) from 3.0.5 to 3.0.8.
- [Release notes](https://github.com/js-cookie/js-cookie/releases)
- [Commits](js-cookie/js-cookie@v3.0.5...v3.0.8)

---
updated-dependencies:
- dependency-name: js-cookie
  dependency-version: 3.0.8
  dependency-type: indirect
...

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

Author: dependabot[bot]