docs: update GHA step documentation for v1.9.0

[gdsoumya]

This PR updates docs for GHA steps, adding deprecation notice for fields removed in 1.9 and adding updated config for new 1.9 version

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 55.35%. Comparing base (2aa8729) to head (8a90a51).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5483      +/-   ##
==========================================
+ Coverage   55.11%   55.35%   +0.24%     
==========================================
  Files         426      430       +4     
  Lines       31564    31851     +287     
==========================================
+ Hits        17396    17631     +235     
- Misses      13163    13214      +51     
- Partials     1005     1006       +1     

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