feat: Add Aliyun provider support for desktop environment (#304)

* Adding support for aliyun as a provider

* feat: enhance Aliyun provider support

- Added Aliyun as a new provider in the desktop environment.
- Updated the environment configuration guidelines for Aliyun, including prerequisites and environment variables.
- Implemented instance allocation and management functions for Aliyun ECS, including signal handling for graceful termination.
- Improved logging and error handling during instance creation and status checks.
- Adjusted the provider's methods to utilize the new instance management functions.

desktop_env/desktop_env.py

@@ -158,7 +158,7 @@ class DesktopEnv(gym.Env):
         # Track whether environment has been used (step/setup) to optimize snapshot revert
         # docker, aws, gcp, azure are always unused as the emulator starts from a clean state
         # vmware, virtualbox are always used as the emulator starts from a dirty state
-        if self.provider_name in {"docker", "aws", "gcp", "azure"}:
+        if self.provider_name in {"docker", "aws", "gcp", "azure", "aliyun"}:
             self.is_environment_used = False
         elif self.provider_name in {"vmware", "virtualbox"}:
             self.is_environment_used = True