Refactor privileges for ssh commands

Remove logic that checks for root login and prepends command with sudo, because
we should not use root login at all and all commands (that require higher permissions
should be prefixed with sudo anyways).
Add sudo prefix to privileged commands that require it.

Signed-off-by: Vladimir Domnich <v.domnich@yadro.com>

pytest_tests/helpers/sbercloud_helper.py

@@ -38,6 +38,13 @@ class SberCloudConfig:
 
 
 class SberCloud:
+    """
+    Manages resources in Sbercloud via API.
+
+    API reference:
+    https://docs.sbercloud.ru/terraform/ug/topics/quickstart.html
+    https://support.hc.sbercloud.ru/en-us/api/ecs/en-us_topic_0020212668.html
+    """
     def __init__(self, config: SberCloudConfig) -> None:
         self.config = config
         self.ecs_url = None