[GLib] GArrowArray: concatenate is missing

[asfimport]

please add concat_arrays to Arrow::Array classes. This has been added separately to Python but would be good to have for all languages.

Reporter: Dominic Sisneros / @dsisnero
Assignee: Kouhei Sutou / @kou

Related issues:

• [GLib] GArrowChunkedArray: combine is missing (is cloned by)

PRs and other links:

• GitHub Pull Request #9697

_{Note: This issue was originally created as ARROW-11859. Please see the migration documentation for further details.}

[asfimport]

Kouhei Sutou / @kou:
Issue resolved by pull request 9697
#9697