feat: pprof profiling and monitoring system

[juniormp]

Description

It creates a new domain (monitoring) that introduces:

• Memory monitoring section (stats) to track memory usage and perform a graceful service restart when memory usage exceeds a defined threshold. The goal is to ensure the stability and reliability of the application by proactively managing memory resources.
• Profiling capabilities (pprof) to monitor various aspects of the program's runtime performance. The Profile struct allows users to enable or disable profiling, specify the frequency of profile collection, and track goroutine and heap profiles. The goal is to provide insights into the program's runtime behavior, aiding in performance optimization and debugging.

Changes include

• Bugfix (non-breaking change that solves an issue)
• Hotfix (change that solves an urgent issue, and requires immediate attention)
• New feature (non-breaking change that adds functionality)
• Breaking change (change that is not backwards-compatible and/or changes current functionality)

Checklist

• I have assigned this PR to myself
• I have added at least 1 reviewer
• I have added the relevant labels
• I have updated the official documentation
• I have added sufficient documentation in code

Testing

• I have tested this code with the official test suite
• I have tested this code manually

Manual tests

Tested in toronto-1 and toronto-4.

• Generating pprof profiles with isEnable and delayInSeconds flag.
• Heap memory stress test with application restart.