chore: make edge docs and scripts reference v0.9.0-rc.3

[krancour]

Do not merge until v0.9.0-rc.3 is cut.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 51.09%. Comparing base (94f4295) to head (73381b3).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2660   +/-   ##
=======================================
  Coverage   51.09%   51.09%           
=======================================
  Files         282      282           
  Lines       21121    21121           
=======================================
  Hits        10792    10792           
  Misses       9646     9646           
  Partials      683      683           

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