ci(fix): add circleci pipeline definition to manual e2e tests

[zimeg]

Summary

This PR follows #196 and adds the CircleCI pipeline definition to manual E2E test inputs as an update to breaking changes.

Preview

• Before: https://github.com/slackapi/slack-cli/actions/runs/17048829618/job/48331318979
• After: https://github.com/slackapi/slack-cli/actions/runs/17049070032/job/48332075531

Notes

🔗 Release notes: https://github.com/promiseofcake/circleci-trigger-action/releases/tag/v2.0.0

🔏 I added the CircleCI pipeline ID as CIRCLECI_DEFINITION_ID to the repo secret sto match documented examples!

Requirements

• I've read and understood the Contributing Guidelines and have done my best effort to follow them.
• I've read and agree to the Code of Conduct.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 62.96%. Comparing base (d2349b6) to head (2938551).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #200      +/-   ##
==========================================
+ Coverage   62.95%   62.96%   +0.01%     
==========================================
  Files         212      212              
  Lines       21782    21782              
==========================================
+ Hits        13712    13715       +3     
+ Misses       7006     7005       -1     
+ Partials     1064     1062       -2     

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[mwbrooks]

✅ 👌🏻 Looking good!

[zimeg]

@mwbrooks A most kind thank you as always 🐢 ✨