fix: 修复 mergeConfig 字段缺失的问题

src/core/mergeConfig.ts

@@ -54,12 +54,16 @@ function deepMergeConfig(
   });
 }
 
-const onlyFromConfig2Keys: AxiosRequestConfigKey[] = ['url', 'method', 'data'];
+const onlyFromConfig2Keys: AxiosRequestConfigKey[] = [
+  'url',
+  'method',
+  'data',
+  'upload',
+  'download',
+];
 const priorityFromConfig2Keys: AxiosRequestConfigKey[] = [
   'adapter',
   'baseURL',
-  'method',
-  'validateStatus',
   'paramsSerializer',
   'transformRequest',
   'transformResponse',

src/defaults.ts

@@ -3,7 +3,6 @@ import { AxiosRequestConfig } from './core/Axios';
 
 const defaults: AxiosRequestConfig = {
   adapter: getAdapterDefault(),
-  method: 'get',
   headers: {
     common: {
       Accept: 'application/json, test/plain, */*',