Bump eslint-plugin-svelte from 3.8.2 to 3.9.0

Bumps [eslint-plugin-svelte](https://github.com/sveltejs/eslint-plugin-svelte) from 3.8.2 to 3.9.0.
- [Release notes](https://github.com/sveltejs/eslint-plugin-svelte/releases)
- [Commits](https://github.com/sveltejs/eslint-plugin-svelte/compare/[email protected]@3.9.0)

---
updated-dependencies:
- dependency-name: eslint-plugin-svelte
  dependency-version: 3.9.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]