beacon API eventstream blob_sidecar topic versioned hash incorrect format

[Savid]

Describe the bug
The blob_sidecar topic payload in the beacon API event stream has incorrect versioned_hash formatted value, its not in hex string format.

Current payload;

{"block_root":"0x28f116a750ddbe6d0f66a6bdf2efb5b50605d5c5d9308d48b79033591293aa32","index":"0","slot":"4244117","kzg_commitment":"0x878d73147b9628205180f52bd05d3f8f2a9ad3915d4db05af29a80857e6899f2a2277362fcf961e531e755146dbb95c3","versioned_hash":["1","99","31","214","22","60","236","98","137","10","15","116","245","208","107","65","34","86","160","104","92","59","92","104","94","8","176","35","159","80","54","246"]}

Expected payload;

{"block_root":"0x28f116a750ddbe6d0f66a6bdf2efb5b50605d5c5d9308d48b79033591293aa32","index":"0","slot":"4244117","kzg_commitment":"0x878d73147b9628205180f52bd05d3f8f2a9ad3915d4db05af29a80857e6899f2a2277362fcf961e531e755146dbb95c3","versioned_hash":"0x01631fd6163cec62890a0f74f5d06b412256a0685c3b5c685e08b0239f5036f6"}

Tested on commit 0638741

To Reproduce

curl "http://127.0.0.1:5052/eth/v1/events?topics=blob_sidecar" -H "accept: text/event-stream"

[tersec]

#5844