Update test workflow and upload artifacts version

[sainak]

Proposed Changes

• pass codecov sectets
• only save test cache on push workflow
• update upload artifact version

Merge Checklist

• Tests added/fixed
• Update docs in /docs
• Linting Complete
• Any other necessary step

Only PR's with test cases included and passing lint and test pipelines will be reviewed

@coronasafe/care-backend-maintainers @coronasafe/care-backend-admins

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 63.48%. Comparing base (51ce81e) to head (bbe616f).
Report is 119 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #2265      +/-   ##
===========================================
+ Coverage    62.20%   63.48%   +1.28%     
===========================================
  Files          221      238      +17     
  Lines        12204    13262    +1058     
  Branches      1742     1885     +143     
===========================================
+ Hits          7591     8419     +828     
- Misses        4305     4490     +185     
- Partials       308      353      +45     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.