chore(deps): bump docs/themes/docsy from bbf68d4 to c8162c2

Bumps [docs/themes/docsy](https://github.com/google/docsy) from `bbf68d4` to `c8162c2`.
- [Release notes](https://github.com/google/docsy/releases)
- [Commits](google/docsy@bbf68d4...c8162c2)

---
updated-dependencies:
- dependency-name: docs/themes/docsy
  dependency-version: c8162c2346bd68248411c75c994555a27b6645b4
  dependency-type: direct:production
...

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Author: dependabot[bot]