ci(tests): test against go stable & oldstable

[gszr]

• Change the tests and codeql-analysis workflows to run against both Go stable and oldstable. (If we do not want to test against both, please let me know.)
• Change remaining workflows to run against stable - rather than hardcoding

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 21.69%. Comparing base (2af58c0) to head (8c67fa1).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1245   +/-   ##
=======================================
  Coverage   21.69%   21.69%           
=======================================
  Files          53       53           
  Lines        5453     5453           
=======================================
  Hits         1183     1183           
  Misses       4177     4177           
  Partials       93       93           

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[Prashansa-K]

@gszr Could you please resolve the conflicts that are being shown here?

I had added some changes here: #1336 to address this issue. So, in some places we may have to keep the version same as go.mod so that the released version and project version golang match.