feat(websockets): implements custom websocket transport to new v6 architecture

[lukeocodes]

This pull request introduces a robust mechanism for patching and customizing WebSocket imports in auto-generated client files, enabling future transport customization without modifying generated code directly. It adds a new script to automate the patching process, a wrapper module for WebSocket-related imports, and improves the live transcription WebSocket example to simulate real-time audio streaming.

WebSocket Transport Customization:

• Added a new script scripts/patch_websocket_transport.py to automatically patch auto-generated client files, replacing direct websockets imports with imports from a new wrapper module. This allows for easier customization and future-proofing of WebSocket transport logic.
• Introduced src/deepgram/core/websocket_wrapper.py, which wraps and re-exports key websockets modules and functions. This enables generated code to import WebSocket functionality from a single customizable location.
• Added a patch-websockets target to the Makefile to run the new patching script conveniently.

Example and Test Improvements:

• Enhanced the examples/07-transcription-live-websocket.py example to read an audio file, chunk it into 100ms segments, and send the chunks with real-time delays to simulate microphone input. This provides a more realistic demonstration of live transcription via WebSocket. [1] [2] [3]
• Updated .fernignore in tests/manual to ignore .gitignore files, preventing them from being included in test packaging or deployment.

[coderabbitai]

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✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch lo/v6-custom-websocket-transports

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