增加action缓存

.github/workflows/build_docker_image.yml

@@ -47,11 +47,15 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
+      - uses: pnpm/action-setup@v2
+        with:
+          version: latest
       - uses: actions/setup-node@v3
+        with:
+          cache: 'pnpm'
 
       - name: build front and back
         run: |
-          npm i -g pnpm
           pnpm install
           pnpm build:front
           pnpm build:back
@@ -94,7 +98,12 @@ jobs:
 
     steps:
       - uses: actions/checkout@v3
+      - uses: pnpm/action-setup@v2
+        with:
+          version: latest
       - uses: actions/setup-node@v3
+        with:
+          cache: 'pnpm'
 
       - name: Setup timezone
         uses: zcong1993/setup-timezone@master