add turbo caching to ci

.github/workflows/main.yml

@@ -14,14 +14,23 @@ jobs:
     env:
       CI: true
       TURBO_TOKEN: ${{ secrets.TURBO_TOKEN }}
-      TURBO_TEAM: ${{ secrets.TURBO_TEAM }}
+      TURBO_TEAM: ${{ vars.TURBO_TEAM }}
+      TURBO_REMOTE_ONLY: true
 
     steps:
       - name: Checkout
         uses: actions/checkout@v4
         with:
           fetch-depth: 2
 
+      - name: Cache turbo build setup
+        uses: actions/cache@v4
+        with:
+          path: .turbo
+          key: ${{ runner.os }}-turbo-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-turbo-
+
       - uses: pnpm/action-setup@v4
 
       - name: Install Node.js