build(deps): bump slang from 1a6d089 to 0b6fb57

Bumps [slang](https://github.com/MikePopoloski/slang) from `1a6d089` to `0b6fb57`.
- [Release notes](https://github.com/MikePopoloski/slang/releases)
- [Commits](MikePopoloski/slang@1a6d089...0b6fb57)

---
updated-dependencies:
- dependency-name: slang
  dependency-type: direct:production
...

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