chore(deps): bump pnpm/action-setup

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


Updates `pnpm/action-setup` from 3 to 4
- [Release notes](https://github.com/pnpm/action-setup/releases)
- [Commits](pnpm/action-setup@v3...v4)

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

Signed-off-by: dependabot[bot] <[email protected]>

.github/actions/setup-environment/action.yml

@@ -21,7 +21,7 @@ runs:
   using: 'composite'
   steps:
     - name: Setup PNPM
-      uses: pnpm/action-setup@v3
+      uses: pnpm/action-setup@v4
       with:
         version: ${{ inputs.pnpm-version }}
     - name: Setup Node