Infra 1576 keep connector

[guillaumemel]

Description

This pull request introduces a stream connector compatible with the product KEEP.

The purpose of this change is to enable seamless integration between Centreon and KEEP by adding support for KEEP's incoming webhooks.

Fixes # (issue)

Type of change

• Patch fixing an issue (non-breaking change)
• New functionality (non-breaking change)
• Breaking change (patch or feature) that might cause side effects breaking part of the Software

Target serie

• 22.10.x
• 23.04.x
• 23.10.x
• 24.04.x
• 24.10.x
• master

How this pull request can be tested ?

Please describe the procedure to verify that the goal of the PR is matched. Provide clear instructions so that it can be correctly tested.

Any relevant details of the configuration to perform the test should be added.

Checklist

1. Create a Trial or Self-Hosted Environment on KEEP:
   Set up a trial account on KEEP (SaaS) or deploy a self-hosted environment.
2. Retrieve the API Key:
   In the KEEP environment, go to settings and retrieve the API key for incoming webhooks.
3. Configure a Generic Stream Connector in Centreon:
   Add a stream connector with the following parameters:
   keep_api_key → Corresponds to your KEEP API key.
   http_server_url → (Optional) For self-hosted URLs. Not required for KEEP SaaS.

4. Test the Integration:
Trigger events in Centreon and ensure that they are properly processed and displayed in KEEP.

Community contributors & Centreon team

• I have followed the coding style guidelines provided by Centreon
• I have commented my code, especially new classes, functions or any legacy code modified. (docblock)
• I have commented my code, especially hard-to-understand areas of the PR.
• I have rebased my development branch on the base branch (master, maintenance).

[guillaumemel]

Thank you Tanguy