[MWPW-158583] Update old run-nala GitHub action job

[skumar09]

• Do not run nala tests on all PRs without the specified label, as the run-nala-default.yaml will handle this
• Update the configuration to support running Nala tests on consuming projects when the specified label is present
  • run-nala-on-<consuming project> from Nala repositories

Resolves: MWPW-158583

Test URLs:

• Before: https://main--milo--adobecom.hlx.page/?martech=off
• After: https://nala-worklflow--milo--adobecom.hlx.page/?martech=off

[aem-code-sync]

	Page	Scores	Audits	Google
📱	/?martech=off
🖥️	/?martech=off

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.24%. Comparing base (8da3683) to head (d99d687).
Report is 6 commits behind head on stage.

Additional details and impacted files

@@           Coverage Diff           @@
##            stage    #2896   +/-   ##
=======================================
  Coverage   96.24%   96.24%           
=======================================
  Files         237      237           
  Lines       54219    54219           
=======================================
  Hits        52182    52182           
  Misses       2037     2037           

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[github-actions]

Reminder to set the Ready for Stage label - to queue this to get merged to stage & production.