arrow

GH-35418: [GLib] Add GArrowRunEndEncodedArray (#36470)

### Rationale for this change

`arrow::RunEndEncodedArray` is available since Apache Arrow C++ 12. Apache Arrow GLib should support it.

### What changes are included in this PR?

Add `GArrowRunEndEncodedArray` as the binding of `arrow::RunEndEncodedArray`.

`garrow_array_run_end_encode()` and `garrow_run_end_encoded_array_decode()` are also added.

### Are these changes tested?

Yes.

### Are there any user-facing changes?

Yes.

* Closes: #35418

Authored-by: Sutou Kouhei <kou@clear-code.com>
Signed-off-by: Sutou Kouhei <kou@clear-code.com>