New methods S3 client

Signed-off-by: Dmitriy Zayakin <d.zayakin@yadro.com>

src/frostfs_testlib/s3/aws_cli_client.py

@@ -39,6 +39,10 @@ class AwsCliClient(S3ClientWrapper):
         except Exception as err:
             raise RuntimeError("Error while configuring AwsCliClient") from err
 
+    @reporter.step_deco("Set endpoint S3 to {s3gate_endpoint}")
+    def set_endpoint(self, s3gate_endpoint: str):
+        self.s3gate_endpoint = s3gate_endpoint
+
     @reporter.step_deco("Create bucket S3")
     def create_bucket(
         self,