ci: enable corepack for web Vercel deploy to use pnpm@11

Author: jhb-dev

.github/workflows/deploy.yml

@@ -168,18 +168,21 @@ jobs:
           CMS_URL="${{ needs.deploy-cms.outputs.deployment_url }}"
 
           if [ "$IS_PROD" == "true" ]; then
-            DEPLOYMENT_URL=$(vercel deploy --prod --yes --token=${{ secrets.VERCEL_TOKEN }})
+            DEPLOYMENT_URL=$(vercel deploy --prod --yes --token=${{ secrets.VERCEL_TOKEN }} \
+              --build-env ENABLE_EXPERIMENTAL_COREPACK=1)
           elif [ -n "$CMS_URL" ]; then
             # Preview with CMS preview URL and bypass secret for Vercel Authentication
             DEPLOYMENT_URL=$(vercel deploy --yes --token=${{ secrets.VERCEL_TOKEN }} \
+              --build-env ENABLE_EXPERIMENTAL_COREPACK=1 \
               --build-env CMS_URL=$CMS_URL \
               --build-env CMS_VERCEL_AUTOMATION_BYPASS_SECRET=${{ secrets.CMS_VERCEL_AUTOMATION_BYPASS_SECRET }} \
               --env CMS_URL=$CMS_URL \
               --env CMS_VERCEL_AUTOMATION_BYPASS_SECRET=${{ secrets.CMS_VERCEL_AUTOMATION_BYPASS_SECRET }})
           else
             # Preview without CMS override (uses production CMS from Vercel env vars)
             echo "CMS deployment skipped, using production CMS from Vercel env vars"
-            DEPLOYMENT_URL=$(vercel deploy --yes --token=${{ secrets.VERCEL_TOKEN }})
+            DEPLOYMENT_URL=$(vercel deploy --yes --token=${{ secrets.VERCEL_TOKEN }} \
+              --build-env ENABLE_EXPERIMENTAL_COREPACK=1)
           fi
           echo "deployment_url=$DEPLOYMENT_URL" >> $GITHUB_OUTPUT
         env: