build(deps): bump scss-tokenizer from 0.3.0 to 0.4.3

Bumps [scss-tokenizer](https://github.com/sasstools/scss-tokenizer) from 0.3.0 to 0.4.3.
- [Release notes](https://github.com/sasstools/scss-tokenizer/releases)
- [Commits](sasstools/scss-tokenizer@v0.3.0...v0.4.3)

---
updated-dependencies:
- dependency-name: scss-tokenizer
  dependency-type: indirect
...

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