fix: set AWS_REGION variable

Author: kschelonka

packages/aws-utils/jest.setup.ts

@@ -1,3 +1,3 @@
 process.env.AWS_ACCESS_KEY_ID = 'fake-id';
 process.env.AWS_SECRET_ACCESS_KEY = 'fake-key';
-process.env.AWS_DEFAULT_REGION = 'us-east-1';
+process.env.AWS_REGION = 'us-east-1';