bump dependencies mininal version

[skoudoro]

Small PR to bump our minimal version.

numpy 1.14.5 -> 1.22.4
scipy 1.1 -> 1.8.1
nibabel 3.0.0 -> 4.0.0
h5py 2.8.0 -> 3.7.0
fury 0.8 -> 0.9.0

python_requires 3.6 -> 3.8

Note: This will give us access to typing module which we should start to do.

[arokem]

I think that we need to bump this up to 3.8:

https://github.com/dipy/dipy/blob/master/setup.py#L58

IIUC, we should do that anyway, unrelated to this PR, but may as well do that here.

[skoudoro]

Good catch, thank you! I just updated that

[codecov]

Codecov Report

Merging #2795 (f035a0b) into master (1f5f7e2) will not change coverage.
The diff coverage is 100.00%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2795   +/-   ##
=======================================
  Coverage   81.49%   81.49%           
=======================================
  Files         143      143           
  Lines       20051    20051           
  Branches     3192     3192           
=======================================
  Hits        16340    16340           
  Misses       2904     2904           
  Partials      807      807           

Impacted Files	Coverage Δ
dipy/info.py	100.00% <100.00%> (ø)