build(deps): bump third_party/tools/slang from 25702b8 to feb532a

Bumps [third_party/tools/slang](https://github.com/MikePopoloski/slang) from `25702b8` to `feb532a`.
- [Release notes](https://github.com/MikePopoloski/slang/releases)
- [Commits](MikePopoloski/slang@25702b8...feb532a)

---
updated-dependencies:
- dependency-name: third_party/tools/slang
  dependency-version: feb532a05be03a8fb712c2238069bc90e55febb4
  dependency-type: direct:production
...

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Author: dependabot[bot]