udpate constraints for 3.13

Author: ohmayr

packages/google-auth/testing/constraints-3.13.txt

@@ -4,5 +4,6 @@ pyasn1-modules==0.2.1
 setuptools==40.3.0
 cryptography==38.0.3
 aiohttp==3.9.0
-requests==2.20.0
+requests==2.25.0
 pyjwt==2.0
+urllib3==1.26.0