Fix fill_value=null zarr v2 to v3 conversion for string dtypes
#3110
| Job | Run time |
|---|---|
| 1m 28s | |
| 1m 50s | |
| 2m 57s | |
| 1m 27s | |
| 1m 40s | |
| 9m 22s |
fill_value=null zarr v2 to v3 conversion for string dtypes
#3110
| Job | Run time |
|---|---|
| 1m 28s | |
| 1m 50s | |
| 2m 57s | |
| 1m 27s | |
| 1m 40s | |
| 9m 22s |