fix: docs/requirements.txt to reduce vulnerabilities (#240)

The following vulnerabilities are fixed by pinning transitive dependencies:
- https://snyk.io/vuln/SNYK-PYTHON-REQUESTS-10305723

Co-authored-by: snyk-bot <[email protected]>

Author: replit-reliability

docs/requirements.txt

@@ -88,7 +88,7 @@ pygments==2.19.1
     # via sphinx
 pyseto==1.8.2
     # via -r requirements.in
-requests==2.32.3
+requests==2.32.4
     # via
     #   -r requirements.in
     #   sphinx