Update GH workflow

[aguschin]

1. This needs to be checked by creating a dummy PR that updates this branch. To run the workflow here.
2. This breaks CI - see https://github.com/iterative/mlem/actions/runs/3808281067/jobs/6478727408. Need to be fixed before merge

[codecov]

Codecov Report

Base: 86.77% // Head: 86.78% // Increases project coverage by +0.01% 🎉

Coverage data is based on head (35e6072) compared to base (749b8d9).
Patch has no changes to coverable lines.

❗ Current head 35e6072 differs from pull request most recent head 7cac7e7. Consider uploading reports for the commit 7cac7e7 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #561      +/-   ##
==========================================
+ Coverage   86.77%   86.78%   +0.01%     
==========================================
  Files         102      102              
  Lines        9261     9261              
==========================================
+ Hits         8036     8037       +1     
+ Misses       1225     1224       -1     

Impacted Files	Coverage Δ
mlem/utils/module.py	91.90% <0.00%> (+0.35%)	⬆️

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[aguschin]

Eh, the problem is for Windows - looks like echo "PIP_CACHE_DIR=$(pip cache dir)" >> $GITHUB_ENV doesn't add an env var.

[skshetry]

@aguschin, setup-python has in-built caching now, you can get rid of most of the code here:

https://github.com/actions/setup-python/blob/main/docs/advanced-usage.md#caching-packages.