Fix missing region parameter when deleting files from minio server

apiserver/config/default/services/storage_credentials.conf

@@ -18,8 +18,9 @@ aws {
             {
                 # This will apply to all buckets in this host (unless key/value is specifically provided for a given bucket)
                 host: "localhost:9000"
-                key: "evg_user"
-                secret: "evg_pass"
+                key: "minioadmin"
+                secret: "minioadmin"
+                # region: my-server
                 multipart: false
                 secure: false
             }

apiserver/jobs/async_urls_delete.py

@@ -450,6 +450,7 @@ class AWSStorage(Storage):
             else None,
             "use_ssl": cfg.secure,
             "verify": cfg.verify,
+            "region_name": cfg.region or None,
         }
         name = base[len(scheme_prefix(self.scheme)) :]
         bucket_name = name[len(cfg.host) + 1 :] if cfg.host else name