Fix Dependabot security vulnerabilities in monitoring_flask_backend

Summary

Address 4 Dependabot security alerts in monitoring_flask_backend/requirements.txt:

High Severity

• CVE-2024-1135: Request smuggling leading to endpoint restriction bypass in Gunicorn
• CVE-2024-1135: Gunicorn HTTP Request/Response Smuggling vulnerability

Moderate Severity

• CVE-2024-35195: Requests Session object does not verify requests after making first request with verify=False
• .netrc credentials leak: Requests vulnerable to .netrc credentials leak via malicious URLs

Resolution

Update dependencies:

• gunicorn: 21.2.0 → 23.0.0
• requests: 2.31.0 → 2.32.3

SOC2 Compliance

This issue tracks security vulnerability remediation for compliance purposes.