submodules: update clippy from 69f99e7 to cfb3320

Changes:
````
rustup "Merge `ast::Mutability` and `mir::Mutability`"
rustup #67130
rustup #67455
There are no per-file copyright headers anymore
Update lints for `iterator_step_by_zero` changes
Fix 'redudant' spelling in redundant_clone docs
Fix documentation example for unnecessary_filter_map.
Fix `expect_fun_call` false negative on references
Fix `iterator_step_by_zero` description in declaration
Fix `iterator_step_by_zero` definition
Correct `iterator_step_by_zero` documentation
Update iterator_step_by_zero
Prevent `cmp_nan` when inside constants
Detect comparisons with NAN constants
Fix clippy build failure
````

Author: matthiaskrgr