github-ci: disable libmagic on macos

5.47 is currently breaking CI, so disable during investigation.

Related to ticket OISF#8342.

(cherry picked from commit 3068089)

Author: victorjulien

.github/workflows/builds.yml

@@ -2383,7 +2383,6 @@ jobs:
           hiredis \
           jansson \
           jq \
-          libmagic \
           libnet \
           libtool \
           libyaml \