chore(ci): forgot we need deps

Author: kentcdodds

.github/workflows/validate.yml

@@ -78,6 +78,13 @@ jobs:
           node-version: ${{ matrix.node-version }}
           cache: 'npm'
 
+      - name: 📦 Install dependencies
+        run: npm ci
+
+      # ensure we don't implicitly rely on dev dependencies
+      - name: 📦 Prune dependencies
+        run: npm prune --production
+
       - name: 📂 Restore build output
         uses: actions/cache@v4
         with: