deps: bump pnpm/action-setup from 6.0.1 to 6.0.3 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 6.0.1 to 6.0.3
- [Release notes](https://github.com/pnpm/action-setup/releases)
- [Commits](pnpm/action-setup@078e9d4...903f9c1)

---
updated-dependencies:
- dependency-name: pnpm/action-setup
  dependency-version: 6.0.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
  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@078e9d416474b29c0c387560859308974f7e9c53
+        uses: pnpm/action-setup@903f9c1a6ebcba6cf41d87230be49611ac97822e
       - name: Use Aikido Sec Safe Chain
         run: |
           pnpm install -g @aikidosec/safe-chain@1.1.7