fix(接口测试): 修复侧边栏固定的时候，添加自定义sql请求环境重叠的缺陷

--bug=1025018 --user=王孝刚 【接口测试】场景详情-自定义sql请求-超时时间和引用环境显示重叠
https://www.tapd.cn/55049933/s/1360763

api-test/frontend/src/business/definition/components/request/database/BasisParameters.vue

@@ -42,7 +42,7 @@
                   </el-select>
                 </el-form-item>
               </el-col>
-              <el-col :span="7">
+              <el-col :span="6">
                 <el-form-item
                   :label="$t('api_test.request.sql.dataSource')"
                   prop="dataSourceId"
@@ -67,7 +67,7 @@
                     :min="0" />
                 </el-form-item>
               </el-col>
-              <el-col :span="3">
+              <el-col :span="4">
                 <el-checkbox
                   v-if="request.referenced === 'Created' && scenarioId !== ''"
                   v-model="request.isRefEnvironment"