Update greenlet

Author: tharlestsa

requirements.txt

@@ -24,7 +24,7 @@ google-cloud-storage==3.1.0
 google-crc32c==1.7.1
 google-resumable-media==2.7.2
 googleapis-common-protos==1.69.2
-greenlet==2.0.2
+greenlet==3.1.1
 gunicorn==21.2.0
 h11==0.14.0
 httplib2==0.22.0