build(deps): bump pnpm/action-setup in the github-actions group

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


Updates `pnpm/action-setup` from 4 to 5
- [Release notes](https://github.com/pnpm/action-setup/releases)
- [Commits](pnpm/action-setup@v4...v5)

---
updated-dependencies:
- dependency-name: pnpm/action-setup
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github-actions
...

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

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -55,7 +55,7 @@ jobs:
           bundler-cache: true
 
       - name: Setup pnpm
-        uses: pnpm/action-setup@v4
+        uses: pnpm/action-setup@v5
         with:
           cache: true
           cache_dependency_path: frontend/pnpm-lock.yaml
@@ -85,7 +85,7 @@ jobs:
       - uses: actions/checkout@v6
 
       - name: Setup pnpm
-        uses: pnpm/action-setup@v4
+        uses: pnpm/action-setup@v5
         with:
           cache: true
           cache_dependency_path: frontend/pnpm-lock.yaml
@@ -189,7 +189,7 @@ jobs:
         uses: actions/checkout@v6
 
       - name: Setup pnpm
-        uses: pnpm/action-setup@v4
+        uses: pnpm/action-setup@v5
         with:
           cache: true
           cache_dependency_path: frontend/pnpm-lock.yaml