chore: add ocha_monitoring modules and config

[lazysoundsystem]

Refs: OPS-10130

A trimmed-down version of #412 - including only ocha_monitoring config.

[github-actions]

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```PHP 8.2.15 (cli) (built: Jan 20 2024 14:17:05) (NTS)
Copyright (c) The PHP Group
Zend Engine v4.2.15, Copyright (c) Zend Technologies
with Zend OPcache v8.2.15, Copyright (c), by Zend Technologies
with Xdebug v3.3.1, Copyright (c) 2002-2023, by Derick Rethans
Composer version 2.7.1 2024-02-09 15:26:28
```

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*Pusher: @lazysoundsystem, Action: \`pull_request\`, Workflow: \`Run tests\`*`;

[attiks]

Actually other monitors might be added as well, the will be disabled

[github-actions]

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