Auto merge of #7138 - mgacek8:issue6808_iter_cloned_collect_FN_with_large_array,...

Auto merge of #7138 - mgacek8:issue6808_iter_cloned_collect_FN_with_large_array, r=Manishearth

Fix FN in `iter_cloned_collect` with a large array

fixes #6808
changelog: Fix FN in `iter_cloned_collect` with a large array

I spotted that [is_iterable_array](https://github.com/rust-lang/rust-clippy/blob/a362a4d1d0edb66aef186c1d27b28c60573078f4/clippy_lints/src/loops/explicit_iter_loop.rs#L67-L75) function that `explicit_iter_loop` lint is using only works for array sizes <= 32.
There is this comment:
> IntoIterator is currently only implemented for array sizes <= 32 in rustc

I'm a bit confused, because I read that [IntoIterator for arrays](https://doc.rust-lang.org/src/core/array/mod.rs.html#194-201) with const generic `N` is stable since = "1.0.0". Although Const Generics MVP were stabilized in Rust 1.51.

Should I set MSRV for the current change? I will try to test with older compilers soon.