[GLib][Ruby] Add support for Apache Arrow Flight SQL

[asfimport]

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

PRs and other links:

• GitHub Pull Request #13561

_{Note: This issue was originally created as ARROW-17032. Please see the migration documentation for further details.}

[asfimport]

Kouhei Sutou / @kou:
Issue resolved by pull request 13561
#13561