dot digital destination stub - for registration

[joe-ayoub-segment]

Need to Adding a stub integration for dotdigital audiences so that I can register it, sync to staging, then test in staging.

Testing

Registration only. No testing needed.

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'

New Destination Checklist

• Extracted all action API versions to verioning-info.ts file. example

[github-actions]

New required fields detected

Warning

Your PR adds new required fields to an existing destination. Adding new required settings/mappings for a destination already in production requires updating existing customer destination configuration. Ignore this warning if this PR is for a new destination with no active customers in production.

The following required fields were added in this PR:

• Destination: Dotdigital Audiences, Settings:api_host,username,password
• Destination: Dotdigital Audiences, Action:syncAudience, Fields:segment_computation_action,computation_key,external_audience_id,traits_or_props,enable_batching

Add these new fields as optional instead and assume default values in perform or performBatch block.

[joe-ayoub-segment]

PR deployed