Move renovate.json file to .github subfolder, and use Json5 format. Also add labels to generated PR.

[bmarty]

Let renovate add the labels to trigger the CI.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.33%. Comparing base (62dd9b3) to head (309f3ac).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main       #9      +/-   ##
==========================================
+ Coverage   89.05%   89.33%   +0.28%     
==========================================
  Files         160      104      -56     
  Lines       21381    18008    -3373     
  Branches      291      291              
==========================================
- Hits        19041    16088    -2953     
+ Misses       2337     1917     -420     
  Partials        3        3              

Flag	Coverage Δ
unittests	89.33% <ø> (+0.28%)	⬆️
unittests-ios	?
unittests-react	88.25% <ø> (ø)
unittests-rust	89.50% <ø> (ø)

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

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