Check whether avx2 instruction set is supported for linux binary

[wsxiaoys]

Please describe the feature you want
Before running llama-server binary.

Additional context
Code location:

tabby/crates/llama-cpp-server/src/supervisor.rs

Line 32 in 5aa27b5

let handle = tokio::spawn(async move {

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Please reply with a 👍 if you want this feature.

[Evalir]

i'd like to take this (replied). What would be the outcome of the check here? any additional info helps :)

[wsxiaoys]

i'd like to take this (replied). What would be the outcome of the check here? any additional info helps :)

On Linux build - when avx2 instruction is not supported, generated a warning messages saying llama-server would likely fail with default binary distribution