More cache

.github/workflows/build.yml

@@ -12,14 +12,25 @@ jobs:
         uses: actions/setup-node@v3
         with:
           node-version: 17.x
+          cache: 'npm'
       - name: Install dependencies
         run: npm install
+        uses: actions/setup-node@v3
+        with:
+          node-version: 17.x
+          cache: 'npm'
       - name: Generate unrouted PCBs
         run: npm run gen
+        uses: actions/setup-node@v3
+        with:
+          node-version: 17.x
+          cache: 'npm'
       - name: Export DSN 
         uses: ./.github/actions/export-dsn
         with:
           boards: left right
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
       - name: Autoroute PCB
         uses: ./.github/actions/autoroute
         with: