chore(deps): bump pnpm/action-setup from 3 to 4

Bumps [pnpm/action-setup](https://github.com/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
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/chromatic.yml

@@ -18,7 +18,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0 # 👈 Required to retrieve git history
-      - uses: pnpm/action-setup@v3
+      - uses: pnpm/action-setup@v4
         with:
           version: latest
       - uses: actions/setup-node@v4

.github/workflows/ci.yml

@@ -14,7 +14,7 @@ jobs:
         with:
           role-to-assume: ${{ secrets.GU_RIFF_RAFF_ROLE_ARN }}
           aws-region: eu-west-1
-      - uses: pnpm/action-setup@v3
+      - uses: pnpm/action-setup@v4
         with:
           version: latest
       - uses: actions/setup-node@v4

.github/workflows/cypress-ete-okta.yml

@@ -56,7 +56,7 @@ jobs:
           name: build
       - name: Unzip build
         run: unzip -q build.zip
-      - uses: pnpm/action-setup@v3
+      - uses: pnpm/action-setup@v4
         with:
           version: latest
       - uses: actions/setup-node@v4

.github/workflows/cypress-ete.yml

@@ -46,7 +46,7 @@ jobs:
           name: build
       - name: Unzip build
         run: unzip -q build.zip
-      - uses: pnpm/action-setup@v3
+      - uses: pnpm/action-setup@v4
         with:
           version: latest
       - uses: actions/setup-node@v4

.github/workflows/cypress-mocked-okta.yml

@@ -46,7 +46,7 @@ jobs:
           name: build
       - name: Unzip build
         run: unzip -q build.zip
-      - uses: pnpm/action-setup@v3
+      - uses: pnpm/action-setup@v4
         with:
           version: latest
       - name: Setup node

.github/workflows/cypress-mocked.yml

@@ -46,7 +46,7 @@ jobs:
           name: build
       - name: Unzip build
         run: unzip -q build.zip
-      - uses: pnpm/action-setup@v3
+      - uses: pnpm/action-setup@v4
         with:
           version: latest
       - name: Setup node

.github/workflows/cypress.yml

@@ -18,7 +18,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
       - name: Setup pnpm
-        uses: pnpm/action-setup@v3
+        uses: pnpm/action-setup@v4
         with:
           version: latest
       - name: Setup node