Merge branch 'feature_2023090519_liqian_ad_abtest_config_update' into test

config.py

@@ -1781,7 +1781,7 @@ class BaseConfig(object):
                 'ab4': 1 / 96,
                 'ab5': 1 / 96,
                 'ab6': 1 / 96,
-                'ab7': 1 / 96,
+                'ab7': 1 / 48,
                 'ab8': 1 / 96,
                 'ab9': 1 / 96,
             },