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

submodules: update clippy from 70b93aab to e170c849

Changes:
````
rustup  https://github.com/rust-lang/rust/pull/70536
Rustup to https://github.com/rust-lang/rust/pull/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 #70554

graydon/rust,graydon/rust,aidancully/rust,aidancully/rust,graydon/rust,aidancully/rust,aidancully/rust,graydon/rust,graydon/rust,aidancully/rust,graydon/rust,aidancully/rust