Added required secret check file

[AnkitSegment]

Jira ticket: https://twilio-engineering.atlassian.net/browse/STRATCONN-6226

In this PR, I’ve added a GitHub Action check that scans for common security parameters, Failed the Github Action and raises a warning if any of those parameters are not of type password.

Testing

Include any additional information about the testing you have completed to
ensure your changes behave as expected. For a speedy review, please check
any of the tasks you completed below during your testing.

• Added unit tests for new functionality
• Tested end-to-end using the local server
• [If destination is already live] Tested for backward compatibility of destination. Note: New required fields are a breaking change.
• [Segmenters] Tested in the staging environment
• [Segmenters] [If applicable for this change] Tested for regression with Hadron.

Security Review

Please ensure sensitive data is properly protected in your integration.

• Reviewed all field definitions for sensitive data (API keys, tokens, passwords, client secrets) and confirmed they use type: 'password'

[github-actions]

⚠️ Secret Fields Detected

The following destinations require secret settings values that require review:

• Destination: Actable Predictive
  • Settings: client_secret
• Destination: Adjust (Actions)
  • Settings: default_app_token, default_event_token
• Destination: Adobe Target Cloud Mode
  • Settings: client_code
• Destination: Airship (Actions)
  • Settings: app_key
• Destination: Clay
  • Settings: connection_key, secret_key
• Destination: Criteo
  • Settings: api_key
• Destination: m3ter
  • Settings: access_key_id
• Destination: Movable Ink
  • Settings: password
• Destination: Rehook
  • Settings: api_key, api_secret
• Destination: Segment
  • Settings: source_write_key
• Destination: Spiffy
  • Settings: api_key
• Destination: Twilio
  • Settings: token
• Destination: Usermaven (Actions)
  • Settings: api_key, server_token

This PR cannot be merged until these are removed or converted to secure secrets.

[codecov]

Codecov Report

❌ Patch coverage is 20.45455% with 35 lines in your changes missing coverage. Please review.
✅ Project coverage is 31.86%. Comparing base (ef1e87b) to head (fba3698).
⚠️ Report is 12 commits behind head on main.

Files with missing lines	Patch %	Lines
...ackages/cli/src/commands/validate-secret-fields.ts	20.45%	35 Missing ⚠️

❌ Your patch check has failed because the patch coverage (20.45%) is below the target coverage (80.00%). You can increase the patch coverage or adjust the target coverage.
❌ Your project check has failed because the head coverage (31.86%) is below the target coverage (70.00%). You can increase the head coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3419      +/-   ##
==========================================
- Coverage   32.57%   31.86%   -0.72%     
==========================================
  Files          14       15       +1     
  Lines         703      747      +44     
  Branches      119      126       +7     
==========================================
+ Hits          229      238       +9     
- Misses        474      509      +35     

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