Update requirements.txt

fix for https://github.com/xtekky/gpt4free/issues/687

requirements.txt

@@ -5,6 +5,9 @@ pypasser
 names
 colorama
 curl_cffi
+aiohttp
+flask
+flask_cors
 streamlit
 selenium
 fake-useragent
@@ -20,4 +23,4 @@ random-password-generator
 numpy>=1.22.2 # not directly required, pinned by Snyk to avoid a vulnerability
 tornado>=6.3.2 # not directly required, pinned by Snyk to avoid a vulnerability
 PyExecJS
-browser_cookie3
+browser_cookie3