refactor: replace map iteration with maps.Copy/Clone

Signed-off-by: whosehang <whosehang@outlook.com>

internal/client/auth/session_test.go

@@ -3,6 +3,7 @@ package auth
 import (
 	"encoding/base64"
 	"fmt"
+	"maps"
 	"net/http"
 	"net/http/httptest"
 	"net/url"
@@ -38,9 +39,7 @@ func (w *testAuthenticationWrapper) ServeHTTP(rw http.ResponseWriter, r *http.Re
 	auth := r.Header.Get("Authorization")
 	if auth == "" || !w.authCheck(auth) {
 		h := rw.Header()
-		for k, values := range w.headers {
-			h[k] = values
-		}
+		maps.Copy(h, w.headers)
 		rw.WriteHeader(http.StatusUnauthorized)
 		return
 	}

internal/dcontext/context.go

@@ -2,6 +2,7 @@ package dcontext
 
 import (
 	"context"
+	"maps"
 	"sync"
 
 	"github.com/google/uuid"
@@ -52,9 +53,7 @@ type stringMapContext struct {
 // supports string keys.
 func WithValues(ctx context.Context, m map[string]interface{}) context.Context {
 	mo := make(map[string]interface{}, len(m)) // make our own copy.
-	for k, v := range m {
-		mo[k] = v
-	}
+	maps.Copy(mo, m)
 
 	return stringMapContext{
 		Context: ctx,