Add Splunk Integration

[mijinummi]

🧠 Concept

Forward Sentinel events to Splunk.

⚠️ Problem

Security teams need centralized event visibility.

📁 Implementation Scope

• src/modules/integrations/splunk/

✅ Requirements

• Splunk connector
• Event mapping
• Delivery retries

🎯 Acceptance Criteria

• Integration implemented
• Events delivered
• Mapping verified

[Hassanjubril18]

Please I would like to work on this issue

[grantfox-oss]

🦊 GrantFox — @Hassanjubril18 has been assigned to this issue as part of the Official Campaign campaign!

Next steps:

1. Open a Pull Request referencing this issue (e.g., Closes #133)
2. Your PR will be reviewed by the MD-Creative-Production maintainers

Good luck! Track your progress on GrantFox.