bump stdarch

[RalfJung]

r? @Amanieu

[rustbot]

⚠️ Warning ⚠️

• These commits modify submodules.

[RalfJung]

Seems like it has been a while since the last update... let's hope this goes smooth.

[rust-log-analyzer]

The job x86_64-gnu-tools failed! Check out the build log: (web) (plain)

Click to see the possible cause of the failure (guessed by this bot)

   Compiling tracing-log v0.2.0
error: unnecessary `unsafe` block
  --> compiler/rustc_span/src/analyze_source_file.rs:86:38
   |
86 |                 let multibyte_test = unsafe { _mm_cmplt_epi8(chunk, _mm_set1_epi8(0)) };
   |
   = note: `-D unused-unsafe` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(unused_unsafe)]`


error: unnecessary `unsafe` block
  --> compiler/rustc_span/src/analyze_source_file.rs:88:38
   |
88 |                 let multibyte_mask = unsafe { _mm_movemask_epi8(multibyte_test) };

error: unnecessary `unsafe` block
  --> compiler/rustc_span/src/analyze_source_file.rs:95:41
   |
   |
95 |                     let newlines_test = unsafe { _mm_cmpeq_epi8(chunk, _mm_set1_epi8(b'\n' as i8)) };

error: unnecessary `unsafe` block
  --> compiler/rustc_span/src/analyze_source_file.rs:96:45
   |
   |
96 |                     let mut newlines_mask = unsafe { _mm_movemask_epi8(newlines_test) };

   Compiling rustc_baked_icu_data v0.0.0 (/checkout/compiler/rustc_baked_icu_data)
error: could not compile `rustc_span` (lib) due to 4 previous errors
warning: build failed, waiting for other jobs to finish...

[Noratrieb]

rust-lang/stdarch#1714 looks like you need to remove the unsafe blocks.

[RalfJung]

Closing in favor of #136831