fix(ci): migrate workflow from npm to pnpm

web/.github/workflows/deploy.yml

@@ -20,14 +20,16 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
+      - uses: pnpm/action-setup@v4
+
       - uses: actions/setup-node@v4
         with:
           node-version: 20
-          cache: npm
+          cache: 'pnpm'
 
-      - run: npm ci
+      - run: pnpm install --frozen-lockfile
 
-      - run: npm run build
+      - run: pnpm build
         env:
           NEXT_PUBLIC_BASE_PATH: /${{ github.event.repository.name }}