Upload test results to Codecov.

[pixlwave]

This PR (hopefully) uploads our test results to Codecov to try out their new Test analytics dashboard 🤞

https://app.codecov.io/gh/element-hq/element-x-ios/tests

[github-actions]

	Warnings
⚠️	Some of the commits are missing ticket numbers. Please consider squashing all commits that don't have a tracking number.

Generated by 🚫 Danger Swift against 4eb6264

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 77.44%. Comparing base (0d9d8f9) to head (4eb6264).
Report is 2 commits behind head on develop.

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #3266      +/-   ##
===========================================
- Coverage    77.59%   77.44%   -0.16%     
===========================================
  Files          725      725              
  Lines        58734    58734              
===========================================
- Hits         45577    45484      -93     
- Misses       13157    13250      +93     

Flag	Coverage Δ
unittests	68.99% <ø> (-0.05%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

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[pixlwave]

This seems to work well enough to merge. UI and Integration tests are both included in the dashboard.

[pixlwave]

I think the duplicates in the dashboard are due to my adding the flags after the first few runs…

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[stefanceriu]

Veeery nice! 👌