chore(deps): bump pnpm/action-setup in the github-actions group (#7857)

Bumps the github-actions group with 1 update: [pnpm/action-setup](https://github.com/pnpm/action-setup).


Updates `pnpm/action-setup` from 5.0.0 to 6.0.3
- [Release notes](https://github.com/pnpm/action-setup/releases)
- [Commits](https://github.com/pnpm/action-setup/compare/v5.0.0...v6.0.3)

---
updated-dependencies:
- dependency-name: pnpm/action-setup
  dependency-version: 6.0.3
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github-actions
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/build-docs.yml

@@ -13,7 +13,7 @@ jobs:
       - name: checkout
         uses: actions/checkout@v6
       - name: Setup pnpm
-        uses: pnpm/action-setup@v5.0.0
+        uses: pnpm/action-setup@v6.0.3
         with:
           version: 10.28.2
       - name: Setup Node.js