Bumped to latest nightly

[gyscos]

Fixes #1184

[gyscos]

Might need to ensure CI runs a very recent nightly - the PR in rustc was merged around July 22nd, so anything older than a couple of days would not work.

CI failed as expected in a run using a nightly from March:

nightly-2022-03-16-x86_64-unknown-linux-gnu installed - rustc 1.61.0-nightly (52b34550a 2022-03-15)

[codecov]

Codecov Report

Merging #1186 (aa5b641) into main (5c745f4) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #1186   +/-   ##
=======================================
  Coverage   83.48%   83.48%           
=======================================
  Files         364      364           
  Lines       36392    36392           
=======================================
  Hits        30381    30381           
  Misses       6011     6011           

Impacted Files	Coverage Δ
src/array/utf8/mod.rs	82.71% <0.00%> (-0.93%)	⬇️
src/io/ipc/read/schema.rs	95.49% <0.00%> (-0.33%)	⬇️
src/io/ipc/read/reader.rs	96.98% <0.00%> (+0.66%)	⬆️
src/io/ipc/read/file_async.rs	61.19% <0.00%> (+0.74%)	⬆️

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[gyscos]

Added a commit to bump the nightly version used for the SIMD test.

[jorgecarleitao]

Awesome, thanks a lot, @gyscos !