feat: add baiducloud cert uploader

internal/pkg/vendors/baiducloud-sdk/cas/client.go

@@ -0,0 +1,17 @@
+package cert
+
+import (
+	"github.com/baidubce/bce-sdk-go/services/cert"
+)
+
+type Client struct {
+	*cert.Client
+}
+
+func NewClient(ak, sk, endPoint string) (*Client, error) {
+	client, err := cert.NewClient(ak, sk, endPoint)
+	if err != nil {
+		return nil, err
+	}
+	return &Client{client}, nil
+}