Source Pipedrive: Add Mails Stream

[topefolorunso]

What

Add Pipedrive Mails stream resolves #17436

How

Recommended reading order

1. manifest.yaml
2. mails.json

🚨 User Impact 🚨

Are there any breaking changes? What is the end result perceived by the user?

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1 Ignored Deployment

Name	Status	Preview	Comments	Updated (UTC)
airbyte-docs	⬜️ Ignored (Inspect)	Visit Preview		Oct 25, 2023 10:36pm

[github-actions]

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[marcosmarxm]

Please update the doc changelog, dockerfile and metadata file version

[archangelic]

Looks good. Just changed the stream name from mails to mail.

version incremented