Backport PR #38480: CI: Supress moto server logs in tests (#38501)

Co-authored-by: Matthew Roeschke <[email protected]>

Author: meeseeksmachine

pandas/tests/io/conftest.py

@@ -50,8 +50,7 @@ def s3_base(worker_id):
     pytest.importorskip("s3fs")
     pytest.importorskip("boto3")
     requests = pytest.importorskip("requests")
-    # GH 38090: Suppress http logs in tests by moto_server
-    logging.getLogger("werkzeug").disabled = True
+    logging.getLogger("requests").disabled = True
 
     with tm.ensure_safe_environment_variables():
         # temporary workaround as moto fails for botocore >= 1.11 otherwise,
@@ -71,7 +70,9 @@ def s3_base(worker_id):
 
         # pipe to null to avoid logging in terminal
         proc = subprocess.Popen(
-            shlex.split(f"moto_server s3 -p {endpoint_port}"), stdout=subprocess.DEVNULL
+            shlex.split(f"moto_server s3 -p {endpoint_port}"),
+            stdout=subprocess.DEVNULL,
+            stderr=subprocess.DEVNULL,
         )
 
         timeout = 5