SNOW-2043816: Added imports for old driver

Author: sfc-gh-fpawlowski

test/integ/test_http_interceptor.py

@@ -5,7 +5,10 @@
 
 from snowflake.connector import SnowflakeConnection
 
-from ..test_utils.http_test_utils import RequestTracker
+try:
+    from ..test_utils.http_test_utils import RequestTracker
+except ImportError:
+    pass
 from .test_large_result_set import ingest_data  # NOQA
 
 try:

test/test_utils/http_test_utils.py

@@ -2,7 +2,10 @@
 from collections import deque
 from typing import Deque, FrozenSet, Iterable, NamedTuple, Optional
 
-from snowflake.connector.http_interceptor import HeadersCustomizer, RequestDTO
+try:
+    from snowflake.connector.http_interceptor import HeadersCustomizer, RequestDTO
+except ImportError:
+    pass
 
 
 class CollectingCustomizer(HeadersCustomizer):