ci: Updates the Python version of the CI & file headers

[frgfm]

This PR updates the python version of the CI and the project headers.

[codecov]

Codecov Report

Merging #69 (e0624a8) into main (4cada8c) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main      #69   +/-   ##
=======================================
  Coverage   92.95%   92.95%           
=======================================
  Files          10       10           
  Lines         667      667           
=======================================
  Hits          620      620           
  Misses         47       47           

Impacted Files	Coverage Δ
torchscan/crawler.py	84.32% <ø> (ø)
torchscan/modules/flops.py	97.51% <ø> (ø)
torchscan/modules/macs.py	100.00% <ø> (ø)
torchscan/modules/memory.py	100.00% <ø> (ø)
torchscan/modules/receptive.py	83.78% <ø> (ø)
torchscan/process/memory.py	39.13% <ø> (ø)
torchscan/utils.py	100.00% <ø> (ø)