Upgrade to Linux 6.8 Kernel & Drop TLS

[ashvardanian]

• [x] Drop TLS 💣
• [ ] Acceleratre io_uring engine with zero-copy and other pre-v6.8 kernel functionality
• [ ] Unify benchmarks & examples into a monolith, to make server benchmarks more reproducible
  • [x] FastAPI
  • [x] UCall for Python
  • [x] UCall for C++
  • [ ] GoLang
  • [ ] Lua
• [ ] Reimplement clients to cover much broader functionality
  • [ ] GoLang
  • [x] HTTPX for Python
  • [ ] cURL for C++
• [ ] Dynamic server-side re-batching
  • [ ] UCall for C++
  • [ ] UCall for Python