[llvm] LLVM symbolizer gsym support (PR #134847)

[Mariusz Kwiczala via llvm-commits]

sfc-gh-mkwiczala wrote:

@dwblaikie could you help with workflows awaiting approval:
![image](https://github.com/user-attachments/assets/52d48718-4a0d-45cb-b0f0-77ef5a4b1ae1)


https://github.com/llvm/llvm-project/pull/134847