[Deploy] Bump to v2.1.4

[gunyu1019]

Change Log

• Add current_task inspection in Client.async_setup_hook private method to avoid Timer context exception.
• [Fix] Add a check for undefined self.http field in Client.initial_async_setup method.
• [Fix] Invalid method called in disconnect() method with session ID.
• (Example Source Code) Remove defining loop in synchronous context

Related Issue/Pull Requests

• This issue reported by Discord Coummity (Developer Space)

Checklist

• If code changes were made then they have been tested.
  • I have updated the documentation to reflect the changes.
• This PR fixes an issue.
• This PR adds something new (e.g. new method or parameters).
• This PR is a breaking change (e.g. methods or parameters removed/renamed)