Auto merge of rust-lang#70574 - matthiaskrgr:submodule_upd, r=Centril

submodules: update clippy from 70b93aa to e170c84

Changes:
````
rustup  rust-lang#70536
Rustup to rust-lang#70449
readme: move "how to run single lint" instructions to "Allowing/denying lints" section.
git attribute macros not allowed in submodules
Deprecate REPLACE_CONSTS lint
Bump itertools
````

Fixes rust-lang#70554

Author: bors