Bump up requests and urllib3 to avoid merge conflict with requests and security vulnerability with urllib3

Author: Anirudh Goel

requirements.txt

@@ -52,7 +52,7 @@ python-dotenv==0.10.3
 python-editor==1.0.4
 pytz==2019.2
 redis==3.3.6
-requests==2.22.0
+requests==2.27.1
 rq==1.1.0
 six==1.12.0
 soupsieve==2.2.1
@@ -62,7 +62,7 @@ stripe==2.56.0
 toml==0.10.2
 traitlets==4.3.3
 typed-ast==1.4.3
-urllib3==1.25.11
+urllib3==1.26.5
 wcwidth==0.2.5
 Werkzeug==0.15.5
 wrapt==1.12.1