Update [VoicePipeline] process diagram update

[EnggQasim]

Update [VoicePipeline] process diagram update

graph LR %% Input A["🎤 Audio Input"] --> |"Captured Speech"| B["📝 Transcribe (Speech-to-Text)"] %% Voice Pipeline subgraph Voice_Pipeline ["🔁 AI Processing Pipeline"] direction TB B --> |"Converted Text"| C["🤖 AI Agent"]:::highlight C --> |"Processed Response"| D["🔊 Text-to-Speech 🎙️"] end %% Output D --> |"Generated Speech"| E["🎧 Audio Output"] %% Custom styling classDef highlight fill:#ffcc66,stroke:#333,stroke-width:1px,font-weight:700; 

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@rm-openai pls review it

[rm-openai]

thanks for the PR but I think the diagram is better as is (simpler and easier to grok)