fix: HTTP-Reversed-Shell/req.txt to reduce vulnerabilities

The following vulnerabilities are fixed by pinning transitive dependencies:
- https://snyk.io/vuln/SNYK-PYTHON-PILLOW-6182918

Author: snyk-bot

HTTP-Reversed-Shell/req.txt

@@ -1,3 +1,4 @@
 requests
 pyautogui
-ip2geotools
+ip2geotools
+pillow>=10.2.0 # not directly required, pinned by Snyk to avoid a vulnerability