fix: 修复CI中gosec安装失败的问题

- 移除单独的security扫描job，因为golangci-lint已经包含gosec检查
- 简化CI流程，避免重复的安全扫描
- 解决gosec安装路径错误问题

golangci-lint已经集成了gosec、staticcheck等多种安全和代码质量检查工具，
无需单独运行gosec。这样可以减少CI运行时间并避免重复检查。

Author: zy84338719

.github/workflows/ci.yml

@@ -73,21 +73,3 @@ jobs:
       with:
         version: latest
         args: --timeout=5m
-
-  security:
-    name: Security Scan
-    runs-on: ubuntu-latest
-    steps:
-    - name: Checkout code
-      uses: actions/checkout@v4
-
-    - name: Set up Go
-      uses: actions/setup-go@v4
-      with:
-        go-version: '1.23'
-
-    - name: Install Gosec
-      run: go install github.com/securecodewarrior/gosec/v2/cmd/gosec@latest
-
-    - name: Run Gosec Security Scanner
-      run: gosec ./...