fix: 移除 setup-go/setup-node，宿主机已预装 Go 和 Node

.gitea/workflows/backend-ci.yml

@@ -15,10 +15,6 @@ jobs:
     steps:
       - uses: "http://8.161.227.145:3000/huanghaosheng/checkout@releases/v4"
 
-      - uses: actions/setup-go@v5
-        with:
-          go-version: "1.23"
-
       - name: Download dependencies
         run: go mod download
         env:

.gitea/workflows/frontend-ci.yml

@@ -15,14 +15,6 @@ jobs:
     steps:
       - uses: "http://8.161.227.145:3000/huanghaosheng/checkout@releases/v4"
 
-      - uses: actions/setup-node@v4
-        with:
-          node-version: 22
-          cache: npm
-          cache-dependency-path: frontend/package-lock.json
-        env:
-          npm_config_registry: https://registry.npmmirror.com
-
       - name: Install dependencies
         run: npm ci