Updating macOS runner version

[mshr-h]

#659

[codecov-commenter]

Codecov Report

Merging #668 (49f9d12) into main (41aae4b) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #668   +/-   ##
=======================================
  Coverage   90.24%   90.24%           
=======================================
  Files          78       78           
  Lines        4543     4543           
  Branches      839      839           
=======================================
  Hits         4100     4100           
  Misses        252      252           
  Partials      191      191           

Flag	Coverage Δ
unittests	90.24% <ø> (ø)

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[mshr-h]

Python 3.8 failed with the following warning message. But no similar message on 3.9 and 3.10.
Is Python 3.8 on GitHub Actions compiled on older macOS?

Warning: st.macosx-10.15-x86_64/wheel/tvm/libtvm_runtime.dylib[WARNING] This wheel needs a higher macOS version than the version your Python interpreter is compiled against. To silence this warning, set MACOSX_DEPLOYMENT_TARGET to at least 12_0 or recreate these files with lower MACOSX_DEPLOYMENT_TARGET:

[mshr-h]

TVM build on macOS is pretty freaky.

[mshr-h]

Maybe this is the cause.

[mshr-h]

The TVM build error on macOS is now fixed.

@ksaur @interesaaat
Can you review it?
There are still macOS-11 pipeline checks. I don't know how to solve it.

[interesaaat]

I can solve them. Thanks for saving us the pain of upgrading mac!