Update astro.yml

Author: ColinWttt

.github/workflows/astro.yml

@@ -68,7 +68,10 @@ jobs:
           node-version: "20"
           cache: ${{ steps.detect-package-manager.outputs.manager }}
           cache-dependency-path: ${{ env.BUILD_PATH }}/${{ steps.detect-package-manager.outputs.lockfile }}
-
+      
+      - name: Enable pnpm
+        run: corepack enable
+            
       - name: Setup Pages
         id: pages
         uses: actions/configure-pages@v5