DSA example not fully correct

[kristijanexads]

DSA PR was merged but I see one more thing should be fixed. Docs looks fine, but JSON response example doesn't.
In the response JSON example, transparency should be array of object, not object.

current

"ext": {
        "dsa": {
            "behalf": "Advertiser",
            "paid": "Advertiser",
            "transparency": {
                "domain": "dsp1domain.com",
                "params": [
                    1,
                    2
                ]
            },
            "adrender": 1
        }
    }

updated

 "ext": {
        "dsa": {
            "behalf": "Advertiser",
            "paid": "Advertiser",
            "transparency": [
                {
                    "domain": "dsp1domain.com",
                    "params": [
                        1,
                        2
                    ]
                }
            ],
            "adrender": 1
        }
    }

@lamrowena @hillslatt

https://github.com/InteractiveAdvertisingBureau/openrtb/blob/main/extensions/community_extensions/dsa_transparency.md#sample-openrtb-26-bid-response-with-dsa-transparency