chore: bump version to 6.0.0

[benjaminfrueh]

bump version on stable32

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 59.11%. Comparing base (1bce6f8) to head (42f5021).
⚠️ Report is 79 commits behind head on stable32.

Additional details and impacted files

@@             Coverage Diff              @@
##           stable32    #7748      +/-   ##
============================================
+ Coverage     52.62%   59.11%   +6.48%     
============================================
  Files           504      357     -147     
  Lines         44173    39080    -5093     
  Branches       1137      990     -147     
============================================
- Hits          23248    23102     -146     
+ Misses        20816    15870    -4946     
+ Partials        109      108       -1     

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