Update outdated badge 3.x to 5.x

[TWiStErRob]

Checklist

• Read the contributing guide
• PR should be motivated, i.e. what does it fix, why, and if relevant how
• If possible / relevant include an example in the description, that could help all readers
  including project members to get a better picture of the change
• Avoid other runtime dependencies
• Meaningful commit history ; intention is important please rebase your commit history so that each
  commit is meaningful and help the people that will explore a change in 2 years
• The pull request follows coding style
• Mention Fixes #<issue number> in the description if relevant
• At least one commit should mention Fixes #<issue number> if relevant

[TimvdLippe]

Thanks!

[codecov-commenter]

Codecov Report

Base: 84.78% // Head: 84.78% // No change to project coverage 👍

Coverage data is based on head (996c931) compared to base (0aba0d5).
Patch has no changes to coverable lines.

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #2869   +/-   ##
=========================================
  Coverage     84.78%   84.78%           
  Complexity     2868     2868           
=========================================
  Files           327      327           
  Lines          8780     8780           
  Branches       1068     1068           
=========================================
  Hits           7444     7444           
  Misses         1063     1063           
  Partials        273      273           

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

☔ View full report at Codecov.
📢 Do you have feedback about the report comment? Let us know in this issue.