Drop Python-3.8 support

[sfinkens]

Drop Python-3.8 support since Satpy requires Python >= 3.9

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (7bbcb66) 64.06% compared to head (2dd4d7c) 64.06%.
Report is 8 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #112   +/-   ##
=======================================
  Coverage   64.06%   64.06%           
=======================================
  Files           8        8           
  Lines         693      693           
=======================================
  Hits          444      444           
  Misses        249      249           

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[djhoese]

FYI I think we're planning on dropping 3.9 in Satpy soon as numpy and other scientific python libraries are also dropping it. I guess that can be a future PR for pygac.

[djhoese]

I think you could test with 3.12, but otherwise this looks good to me. If you don't bump the experimental end-to-end with 3.12 then I think it should at least be 3.11.

[sfinkens]

Thanks for taking the time!