update abtest 211 flow_pool_P: 0.4 -> 0.7

recommend.py

@@ -625,7 +625,7 @@ def get_recommend_params(recommend_type, ab_exp_info, ab_info_data, mid, app_typ
 
             # 流量池视频分发概率实验
             if '211' in ab_exp_code_list:
-                flow_pool_P = 0.4
+                flow_pool_P = 0.7
             elif '221' in ab_exp_code_list:
                 flow_pool_P = 0