GH-46864: [C++] Add half-float test for ArrayFromJSONString (#46865)
#8871
| Job | Run time |
|---|---|
| 9m 31s | |
| 9m 31s |
ArrayFromJSONString (#46865)
#8871
| Job | Run time |
|---|---|
| 9m 31s | |
| 9m 31s |