[GLib][CI] Use the latest macOS image and all Homebrew based libraries

[asfimport]

Reporter: Kouhei Sutou / @kou
Assignee: Kouhei Sutou / @kou

PRs and other links:

• GitHub Pull Request #4641

_{Note: This issue was originally created as ARROW-5660. Please see the migration documentation for further details.}

[asfimport]

Wes McKinney / @wesm:
Issue resolved by pull request 4641
#4641