build(ci): cache pnpm store.

.github/workflows/build-and-deploy-by-ftp.yaml

@@ -18,8 +18,30 @@ jobs:
       with:
         node-version: 16
 
-    - run: npm i --location=global pnpm@7
-    - run: pnpm i
+    - uses: https://github.com/pnpm/action-setup@v2
+      name: Install pnpm
+      id: pnpm-install
+      with:
+        version: 7
+        run_install: false
+
+    - name: Get pnpm store directory
+      id: pnpm-cache
+      shell: bash
+      run: |
+        echo "STORE_PATH=$(pnpm store path)" >> $GITHUB_OUTPUT
+
+    - uses: https://github.com/actions/cache@v3
+      name: Setup pnpm cache
+      with:
+        path: ${{ steps.pnpm-cache.outputs.STORE_PATH }}
+        key: ${{ runner.os }}-pnpm-store-${{ hashFiles('**/pnpm-lock.yaml') }}
+        restore-keys: |
+          ${{ runner.os }}-pnpm-store-
+
+    - name: Install dependencies
+      run: pnpm install
+
     - run: pnpm build
     - run: npm run export