Add MacOS build testing#14707

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andrewc12 wants to merge 3 commits intoopenzfs:masterfrom

andrewc12:andrew-appveyormac-01

Commits on Apr 2, 2023

Update appveyor.yml to latest

lundman
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andrewc12
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Build on all branches
andrewc12
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Commits on Apr 8, 2023

Install gnu sed
andrewc12
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