[MWPW-163723] [NALA] Update Nala CircleCI Job to Manual Trigger

[skumar09]

• The current CircleCI job using a self-hosted runner is experiencing issues, causing delays as the automated trigger in the pipeline frequently hangs. This impacts the merge process.
• By default, Nala tests are already running on the stage branch as part of the pipeline, making this additional CircleCI job redundant in most cases.

Updating the workflow to use a manual trigger (workflow_dispatch) temporarily. This allows the CircleCI job to be executed only on demand, avoiding pipeline hangs while maintaining the flexibility to run the job when needed. Once the self-hosted runner issues are resolved, the automated trigger can be reinstated if required

Resolves: MWPW-163723

Test URLs:

• Before: https://main--milo--adobecom.aem.page/?martech=off
• After: https://nala-circleci--milo--adobecom.aem.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 96.41%. Comparing base (82098c7) to head (343cb90).
Report is 96 commits behind head on stage.

Additional details and impacted files

@@           Coverage Diff           @@
##            stage    #3317   +/-   ##
=======================================
  Coverage   96.41%   96.41%           
=======================================
  Files         246      246           
  Lines       57568    57568           
=======================================
  Hits        55505    55505           
  Misses       2063     2063           

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[milo-pr-merge]

Error merging 3317: [MWPW-163723] [NALA] Update Nala CircleCI Job to Manual Trigger Resource not accessible by integration

[milo-pr-merge]

Error merging 3317: [MWPW-163723] [NALA] Update Nala CircleCI Job to Manual Trigger Resource not accessible by integration