feat: add C ndarray interface and refactor implementation for stats/base/dsnanmean
          
            #9063
        
      | Job | Run time | 
|---|---|
| 4s | |
| 4s | 
ndarray interface and refactor implementation for stats/base/dsnanmean
          
            #9063
        
| Job | Run time | 
|---|---|
| 4s | |
| 4s |