[llvm] [lldb] Configure pyright to the documented minimum python version (PR #162952)

[Aiden Grossman via llvm-commits]

boomanaiden154 wrote:

> I don't know if we need to think that far yet. Would people be ok accepting this as is, or prefer users of specific tools set their own settings until such time llvm endorses said tools?

This seems fine to me assuming LLDB maintainers are willing to bless this version as their official version.

https://github.com/llvm/llvm-project/pull/162952