Jeff Epler 7126a2f522 build.yml: Adjust for change in 'brew'
'brew' apparently introduced an incompatible change, where even
"--force" does not actually make the commands available in the default path.

Also switch to a numbered macos release instead of "latest", though this
did not save us from breaking changes in brew or other preinstalled sw.
2020-04-24 09:11:06 -05:00
..