⬆️ upgrade(ci): Bump pnpm/action-setup in /.github/workflows

Bumps [pnpm/action-setup](https://github.com/pnpm/action-setup) from 3.0.0 to 4.0.0.
- [Release notes](https://github.com/pnpm/action-setup/releases)
- [Commits](pnpm/action-setup@v3.0.0...v4.0.0)

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

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

.github/workflows/audit.yml

@@ -16,7 +16,7 @@ jobs:
     steps:
       # changer les versions par les hash
       - uses: actions/checkout@v4
-      - uses: pnpm/action-setup@v3.0.0
+      - uses: pnpm/action-setup@v4.0.0
       - uses: actions/setup-node@v4
         with:
           node-version: "20.x"