chore: bump version to 4.0.0

[ozyx]

Describe your changes:

Version bump to 4.0.0

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Please upload report for BASE (release/4.0.0@d786452). Learn more about missing BASE report.

Additional details and impacted files

@@               Coverage Diff                @@
##             release/4.0.0    #7813   +/-   ##
================================================
  Coverage                 ?   56.84%           
================================================
  Files                    ?      674           
  Lines                    ?    27283           
  Branches                 ?     2669           
================================================
  Hits                     ?    15508           
  Misses                   ?    11436           
  Partials                 ?      339           

Flag	Coverage Δ
e2e-ci	61.04% <ø> (?)
e2e-full	23.52% <ø> (?)
unit	49.38% <ø> (?)

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[unlikelyzero]

Let's write these release notes together