fix(接口测试): get请求自定义query区域第一个参数会默认必填

--bug=1009576 --user=王孝刚 【接口测试】github#9301，get请求==自定义query区域第一个参数会默认必填
https://www.tapd.cn/55049933/s/1091492

frontend/src/business/components/api/definition/components/ApiVariable.vue

@@ -296,7 +296,7 @@ export default {
       this.parameters.push(new KeyValue({
         type: 'text',
         enable: true,
-        required: true,
+        required: false,
         uuid: this.uuid(),
         contentType: 'text/plain'
       }));

frontend/src/business/components/api/definition/components/request/http/ApiHttpRequestForm.vue

@@ -307,7 +307,7 @@ export default {
           let required = false;
           keyValues.unshift(new KeyValue({
             name: line[0],
-            required: !required,
+            required: required,
             value: line[1],
             description: line[2],
             type: "text",