[clang-tools-extra] [clang-tidy] make `misc-const-correctness` work with `auto` variables and lambdas (PR #157319)

[Carlos Galvez via cfe-commits]

carlosgalvezp wrote:

That sounds good to me, we should document clearly that this is a temporary option (active warning by default) to ease migration, and will be removed in clang-tidy-24. The intention is for auto and non-auto variables to have the same treatment.

https://github.com/llvm/llvm-project/pull/157319