ci: fix preview fail on PR closed

.github/workflows/preview.yaml

@@ -25,7 +25,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Checkout PR head
-        if: ${{ startsWith(github.event_name, 'pull_request') }}
+        if: ${{ startsWith(github.event_name, 'pull_request') && github.event.action != 'closed'  }}
         uses: actions/checkout@v4
         with:
           ref: refs/pull/${{ github.event.pull_request.number }}/merge
@@ -35,28 +35,32 @@ jobs:
         uses: actions/setup-node@v4
         if: ${{ github.event.action != 'closed' }} # Skipping these steps if the PR has been closed
         with:
-          node-version-file: "package.json"
-        
+          node-version-file: 'package.json'
+
       - uses: pnpm/action-setup@v4
+        if: ${{ github.event.action != 'closed' }}
         with:
           version: 10
           run_install: false
 
       - name: Get pnpm store directory
         id: pnpm-cache
+        if: ${{ github.event.action != 'closed' }}
         shell: bash
         run: |
           echo "STORE_PATH=$(pnpm store path)" >> $GITHUB_OUTPUT
 
       - uses: actions/cache@v4
         name: Setup pnpm cache
+        if: ${{ github.event.action != 'closed' }}
         with:
           path: ${{ steps.pnpm-cache.outputs.STORE_PATH }}
           key: ${{ runner.os }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}
           restore-keys: |
             ${{ runner.os }}-pnpm-store-V
 
       - name: Install dependencies
+        if: ${{ github.event.action != 'closed' }}
         run: pnpm install
 
       # This will calculate the base URL for the website, based on the event that triggered the workflow.