[ci] Add macOS versions to build matrix #278
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Why this change was necessary
The GitHub workflows were only testing against
macos-latest
, whichstill points to macOS 10.15 Catalina[1]. Now that M1 Macs running
macOS 11.0 Big Sur have reached consumers, Emacs Plus should also
include that OS (and CPU arch) in its CI tests.
What this change does
workflow.
matrix.
previous XCode versions cannot build for Big Sur[2].
Any side-effects?
None.
Additional context/notes/links
[1] https://docs.github.com/en/free-pro-team@latest/actions/reference/specifications-for-github-hosted-runners#supported-runners-and-hardware-resources
[2] actions/runner-images#2056