Fix pip cache

[github-actions[bot]]

Jest coverage report: -----------|---------|----------|---------|---------|-------------------
File | % Stmts | % Branch | % Funcs | % Lines | Uncovered Line #s
-----------|---------|----------|---------|---------|-------------------
All files | 100 | 100 | 100 | 100 |
source.js | 100 | 100 | 100 | 100 |
-----------|---------|----------|---------|---------|-------------------

[github-actions[bot]]

Coverage.py report: Name Stmts Miss Branch BrPart Cover Missing
------------------------------------------------------------
test_source.py 9 2 2 0 82% 5-6
------------------------------------------------------------
TOTAL 16 2 4 0 90%

2 files skipped due to complete coverage.

[0ssigeno]

Closing for now, since the issue was caused by how cache was implemented on github side