fix: requirements.txt to reduce vulnerabilities (#742)

The following vulnerabilities are fixed by pinning transitive dependencies:
- https://snyk.io/vuln/SNYK-PYTHON-CERTIFI-3164749
- https://snyk.io/vuln/SNYK-PYTHON-CERTIFI-5805047
- https://snyk.io/vuln/SNYK-PYTHON-REQUESTS-5595532

Co-authored-by: snyk-bot <snyk-bot@snyk.io>
Co-authored-by: Shubham <tiwarishubham635@gmail.com>

requirements.txt

@@ -1,5 +1,6 @@
 pygments>=2.7.4 # not directly required, pinned by Snyk to avoid a vulnerability
-requests>=2.0.0
+requests>=2.31.0
 PyJWT>=2.0.0, <3.0.0
 aiohttp>=3.9.0
 aiohttp-retry>=2.8.3
+certifi>=2023.7.22 # not directly required, pinned by Snyk to avoid a vulnerability