deps: bump pnpm/action-setup from 5.0.0 to 6.0.0 in the regular group

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


Updates `pnpm/action-setup` from 5.0.0 to 6.0.0
- [Release notes](https://github.com/pnpm/action-setup/releases)
- [Commits](pnpm/action-setup@fc06bc1...08c4be7)

---
updated-dependencies:
- dependency-name: pnpm/action-setup
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: regular
...

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

Author: dependabot[bot]

.github/workflows/pull_request_docs.yml

@@ -79,7 +79,7 @@ jobs:
           token: ${{ secrets.JRELEASER_GITHUB_TOKEN }} # Safe; only used to clone the repo and not stored in the fork.
           fetch-depth: 0 # Otherwise merge will fail on account of not having history.
       - name: Install pnpm
-        uses: pnpm/action-setup@fc06bc1257f339d1d5d8b3a19a8cae5388b55320
+        uses: pnpm/action-setup@08c4be7e2e672a47d11bd04269e27e5f3e8529cb
       - name: Use Aikido Sec Safe Chain
         run: |
           pnpm install -g @aikidosec/safe-chain@1.1.7