[skip ci] Change host from localhost to 127.0.0.1 (#8969)

Signed-off-by: Nzhuwenxing <wenxing.zhu@zilliz.com>

tests/python_client/chaos/test_chaos.py

@@ -34,7 +34,7 @@ class TestChaosBase:
     expect_index = constants.SUCC
     expect_search = constants.SUCC
     expect_query = constants.SUCC
-    host = 'localhost'
+    host = '127.0.0.1'
     port = 19530
     _chaos_config = None
     health_checkers = {}