chore(deps): bump pnpm/action-setup from 2 to 4 (#74)

Bumps [pnpm/action-setup](https://github.com/pnpm/action-setup) from 2 to 4.
- [Release notes](https://github.com/pnpm/action-setup/releases)
- [Commits](pnpm/action-setup@v2...v4)

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

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/iso-filecoin.yml

@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: pnpm/action-setup@v3
+      - uses: pnpm/action-setup@v4
         with:
           version: latest
       - uses: actions/setup-node@v4

.github/workflows/release.yml

@@ -35,7 +35,7 @@ jobs:
       id-token: write
     steps:
       - uses: actions/checkout@v4
-      - uses: pnpm/action-setup@v3
+      - uses: pnpm/action-setup@v4
         with:
           version: latest
       - uses: actions/setup-node@v4

.github/workflows/reusable-docs.yml

@@ -20,7 +20,7 @@ jobs:
       url: ${{ steps.deployment.outputs.page_url }}
     steps:
       - uses: actions/checkout@v4
-      - uses: pnpm/action-setup@v3
+      - uses: pnpm/action-setup@v4
         with:
           version: latest
       - uses: actions/setup-node@v4