Install dependencies from package.json before deloy site (#303)

Author: numbata

.github/workflows/gen-members.yml

@@ -103,6 +103,12 @@ jobs:
         with:
           name: og-images
           path: public/og/members/
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 18
+          cache: 'npm'
+      - name: Install dependencies
+        run: npm install
       - name: Deploy Site
         env:
           NETLIFY_SITE_ID: ${{ secrets.NETLIFY_SITE_ID }}