bump aws dep version (#4237)

This PR is simply the patch from
https://github.com/neondatabase/neon/issues/4008 except we enabled
`force_path_style` for custom endpoints. This is because at some
version, the s3 sdk by default uses the virtual-host style access, which
is not supported by MinIO in the default configuration. By enforcing
path style access for custom endpoints, we can pass all e2e test cases.

SDK 0.55 is not the latest version and we can bump it further later when
all flaky tests in this PR are resolved.

This PR also (hopefully) fixes flaky test
`test_ondemand_download_timetravel`.

close https://github.com/neondatabase/neon/issues/4008

Signed-off-by: Alex Chi <iskyzh@gmail.com>

test_runner/regress/test_ondemand_download.py

@@ -20,6 +20,7 @@ from fixtures.pageserver.utils import (
     assert_tenant_state,
     wait_for_last_record_lsn,
     wait_for_upload,
+    wait_for_upload_queue_empty,
     wait_until_tenant_state,
 )
 from fixtures.types import Lsn
@@ -149,6 +150,7 @@ def test_ondemand_download_timetravel(
 
     ##### First start, insert data and upload it to the remote storage
     env = neon_env_builder.init_start()
+    pageserver_http = env.pageserver.http_client()
 
     # Override defaults, to create more layers
     tenant, _ = env.neon_cli.create_tenant(
@@ -225,7 +227,8 @@ def test_ondemand_download_timetravel(
     assert filled_current_physical == filled_size, "we don't yet do layer eviction"
 
     # Wait until generated image layers are uploaded to S3
-    time.sleep(3)
+    if remote_storage_kind is not None:
+        wait_for_upload_queue_empty(pageserver_http, env.initial_tenant, timeline_id)
 
     env.pageserver.stop()