[rh:websockets] Migrate websockets to networking framework (#7720)

* Adds a basic WebSocket framework
* Introduces new minimum `websockets` version of 12.0
* Deprecates `WebSocketsWrapper`

Fixes https://github.com/yt-dlp/yt-dlp/issues/8439

Authored by: coletdjnz

yt_dlp/networking/__init__.py

@@ -21,3 +21,11 @@ except ImportError:
     pass
 except Exception as e:
     warnings.warn(f'Failed to import "requests" request handler: {e}' + bug_reports_message())
+
+try:
+    from . import _websockets
+except ImportError:
+    pass
+except Exception as e:
+    warnings.warn(f'Failed to import "websockets" request handler: {e}' + bug_reports_message())
+