Use the build RC_NUMBER value for integration test build.

[prudhvigodithi]

Description

Coming from #4876 Use the build RC_NUMBER value for integration test build.

Issues Resolved

Part of opensearch-project/opensearch-metrics#56 and opensearch-project/opensearch-metrics#51

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.32%. Comparing base (cbbf84a) to head (68a8668).
Report is 6 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #4877   +/-   ##
=======================================
  Coverage   92.32%   92.32%           
=======================================
  Files         193      193           
  Lines        6453     6453           
=======================================
  Hits         5958     5958           
  Misses        495      495           

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