Fix typo in umccrise CDK stack

Author: reisingerf

cdk/apps/umccrise/stacks/batch.py

@@ -137,7 +137,7 @@ def __init__(self, scope: core.Construct, id: str, props, **kwargs) -> None:
                 'deviceName': '/dev/xvdf',
                 'ebs': {
                     'deleteOnTermination': True,
-                    'encrypted': True
+                    'encrypted': True,
                     'volumeSize': 2048,
                     'volumeType': 'gp2'
                 }