oak: update golang.org/x/sys

[200sc]

This bump enables building oak on windows ARM64.

[codecov-commenter]

Codecov Report

Merging #184 (935dec0) into master (8ce1c67) will decrease coverage by 0.12%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #184      +/-   ##
==========================================
- Coverage   92.72%   92.60%   -0.13%     
==========================================
  Files         141      141              
  Lines        6406     6406              
==========================================
- Hits         5940     5932       -8     
- Misses        406      415       +9     
+ Partials       60       59       -1     

Impacted Files	Coverage Δ
drawLoop.go	50.94% <0.00%> (-9.44%)	⬇️
sceneLoop.go	91.01% <0.00%> (-3.38%)	⬇️
event/handler.go	96.66% <0.00%> (ø)

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