Ignoring `let_underscore_untyped` warnings in code from proc macros Don't linting let_underscore_untyped if code was generated by procedural macro. This PR fixes https://github.com/rust-lang/rust-clippy/issues/10723 --- closes: https://github.com/rust-lang/rust-clippy/issues/10723 changelog: Fix: [`let_underscore_untyped`]: No longer lints inside proc macros [#10775](https://github.com/rust-lang/rust-clippy/pull/10775) <!-- changelog_checked -->