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

[John Harrison via llvm-commits]

ashgti wrote:

I made an RFC for type checking the lldb python code in https://discourse.llvm.org/t/rfc-type-checking-to-python-code/86605 and https://github.com/ashgti/llvm-project/commit/85739f380c87ce327c307dc828669a03962b2bc2 was my prototype of this being integrated into the CI. Its a bit out of date, I've been side tracked by other work and haven't revisited that yet.

There is a larger question of how this integrates with the rest of the python code in llvm. So you may want to check with @boomanaiden154 I think they work with the CI system more than I have.

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