CI: cython failure

https://gitlab.esrf.fr/workflow/ewoksapps/est/-/jobs/1341435

Collecting Orange3 (from ewoksorange[orange]>=0.7.0; extra == "test"->est==0.7.2)
  Downloading Orange3-3.37.0.tar.gz (3.7 MB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 3.7/3.7 MB 51.4 MB/s eta 0:00:00
  Installing build dependencies: started
  Installing build dependencies: finished with status 'done'
  Getting requirements to build wheel: started
  Getting requirements to build wheel: finished with status 'error'
  error: subprocess-exited-with-error
  
  × Getting requirements to build wheel did not run successfully.
  │ exit code: 1
  ╰─> [454 lines of output]
      
      Error compiling Cython file:
      ------------------------------------------------------------
      ...
                  yi, xi = int(y[i]), int(x[i])
                  cont[yi, xi] += 1
          return cont
      
      def find_threshold_entropy(const double[:] x, const double[:] y,
                                 const np.intp_t[:] idx,
                                       ^
      ------------------------------------------------------------
      
      Orange/classification/_tree_scorers.pyx:32:33: 'intp_t' is not a type identifier