fix: requirements.txt to reduce vulnerabilities

The following vulnerabilities are fixed by pinning transitive dependencies:
- https://snyk.io/vuln/SNYK-PYTHON-JINJA2-6809379

requirements.txt

@@ -2,6 +2,6 @@ nmap==0.0.1
 openai==0.27.2
 argparse==1.4.0
 python-dotenv==1.0.0
-Jinja2==3.1.3
+Jinja2==3.1.4
 beautifulsoup4==4.12.0
 aiohttp>=3.9.0 # not directly required, pinned by Snyk to avoid a vulnerability