Merge pull request #28182 from vbotbuildovich/backport-pr-26811-v25.2.x-662

[v25.2.x] cloud_storage: hold gate in remote

Author: piyushredpanda

src/v/cloud_io/tests/s3_imposter.h

@@ -115,7 +115,6 @@ class s3_imposter_fixture {
     const cloud_storage_clients::bucket_name bucket_name
       = random_test_bucket_name();
 
-protected:
     cloud_storage_clients::s3_url_style url_style;
     cloud_storage_clients::s3_configuration conf;