Hi,

I am using below payload for PutBucketLogging api and getting MalformedXML error in response. I have checked it with real AWS and it is working perfectly fine. Am I missing something or this needs a fix in localstack?

`"LoggingEnabled": {
            "TargetBucket": "test_bucket_name",
            "TargetPrefix": "log",
            "TargetGrants": [
                {
                    "Grantee": {
                        "URI": "http://acs.amazonaws.com/groups/s3/LogDelivery",
                        "Type": "Group",
                    },
                    "Permission": "WRITE",
                },
                {
                    "Grantee": {
                        "URI": "http://acs.amazonaws.com/groups/s3/LogDelivery",
                        "Type": "Group",
                    },
                    "Permission": "READ_ACP",
                },
            ],
        }
 `
acp = {
            "Grants": [
                {
                    "Grantee": {
                        "URI": "http://acs.amazonaws.com/groups/s3/LogDelivery",
                        "Type": "Group",
                    },
                    "Permission": "WRITE",
                }
            ]
        }
        with 
            aws_client.s3.put_bucket_acl(Bucket=s3_bucket, AccessControlPolicy=acp)
        snapshot.match("put-bucket-acp-acl-1", e.value.response)
        # add 
        acp["Owner"] = owner
        acp["Grants"][0]["Permission"] = "WRONG-PERMISSION"
        with 
            aws_client.s3.put_bucket_acl(Bucket=s3_bucket, AccessControlPolicy=acp)
        snapshot.match("put-bucket-acp-acl-2", e.value.response)
        # rest
        acp["Owner"] = {"ID": "wrong-id"}
        acp["Grants"][0]["Permission"] = "FULL_CONTROL"
        with 
            aws_client.s3.put_bucket_acl(Bucket=s3_bucket, AccessControlPolicy=acp)
        snapshot.match("put-bucket-acp-acl-3", e.value.response)
        # rest
        acp["Owner"] = owner
        acp["Grants"][0]["Grantee"]["URI"] = "http://acs.amazonaws.com/groups/s3/FakeGroup"
        with