Build wheels in github action

[benjeffery]

Fixes #636

[jeromekelleher]

Looks good, thanks @benjeffery. We should probably verify that the oldest-numpy thing works over in kastore first before bringing this in, though?

[benjeffery]

Yep, will sort that out over at kastore first.

[codecov]

Codecov Report

Merging #681 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #681   +/-   ##
=======================================
  Coverage   87.75%   87.75%           
=======================================
  Files          23       23           
  Lines       17687    17687           
  Branches     3498     3498           
=======================================
  Hits        15522    15522           
  Misses       1062     1062           
  Partials     1103     1103           

Flag	Coverage Δ
#c_tests	89.03% <ø> (ø)
#python_c_tests	91.23% <ø> (ø)
#python_tests	98.99% <ø> (ø)

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[benjeffery]

@jeromekelleher Ready for review, getting testing working was a small fix in the end. Only needed change now is removing the triggering on PRs, but will do that when I squash so you can see the actions.

[jeromekelleher]

Looks good, thanks @benjeffery. I'm not that bothered about running the tests, but let's see how it works out. I suspect that the conda stuff will end up being a bit brittle, and this could let us down when it comes to tagging a release.

[benjeffery]

The full test are prob overkill, but the import test at least catches things like tskit-dev/msprime#1031
Squashed and PR trigger removed, marking for merge.

[benjeffery]

Mergify can't merge changes to github actions.