Use admin credentials in test

Author: klevy-toast

pulsaradmin/pkg/admin/namespace_test.go

@@ -18,6 +18,7 @@
 package admin
 
 import (
+	"os"
 	"testing"
 	"time"
 
@@ -791,7 +792,12 @@ func TestNamespaces_Retention(t *testing.T) {
 }
 
 func TestNamespaces_BookieAffinityGroup(t *testing.T) {
-	config := &config.Config{}
+	readFile, err := os.ReadFile("../../../integration-tests/tokens/admin-token")
+	require.NoError(t, err)
+
+	config := &config.Config{
+		Token: string(readFile),
+	}
 	admin, err := New(config)
 	require.NoError(t, err)
 	require.NotNil(t, admin)