fix(request): deep copy shared header object in request options

pkg/request/options.go

@@ -44,6 +44,12 @@ func newDefaultOption() *options {
 	}
 }
 
+func (o *options) clone() options {
+	newOptions := *o
+	newOptions.header = o.header.Clone()
+	return newOptions
+}
+
 // WithTimeout 设置请求超时
 func WithTimeout(t time.Duration) Option {
 	return optionFunc(func(o *options) {

pkg/request/request.go

@@ -56,7 +56,7 @@ func NewClient(opts ...Option) Client {
 func (c *HTTPClient) Request(method, target string, body io.Reader, opts ...Option) *Response {
 	// 应用额外设置
 	c.mu.Lock()
-	options := *c.options
+	options := c.options.clone()
 	c.mu.Unlock()
 	for _, o := range opts {
 		o.apply(&options)