chore: bump cffi version in test requirements

Author: alex

test/upstream-requirements-py311.txt

@@ -1,7 +1,7 @@
 attrs==22.2.0
 boto3==1.26.54
 botocore==1.29.54
-cffi==1.15.1
+cffi==2.1.1
 coverage==7.0.5
 cryptography==42.0.4
 iniconfig==2.0.0