Remove versioned_hashes from data_column_sidecar event (#542)

Author: Savid

apis/eventstream/index.yaml

@@ -157,7 +157,7 @@ get:
               description: The node has received a DataColumnSidecar (from P2P or API) that passes all gossip validations on the data_column_sidecar_{subnet_id} topic
               value: |
                 event: data_column_sidecar
-                data: {"block_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2", "index": "1", "slot": "1", "kzg_commitments": ["0x1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505cc411d61252fb6cb3fa0017b679f8bb2305b26a285fa2737f175668d0dff91cc1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505"], "versioned_hashes": ["0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2"]}
+                data: {"block_root": "0xcf8e0d4e9587369b2301d0790347320302cc0943d5a1884560367e8208d920f2", "index": "1", "slot": "1", "kzg_commitments": ["0x1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505cc411d61252fb6cb3fa0017b679f8bb2305b26a285fa2737f175668d0dff91cc1b66ac1fb663c9bc59509846d6ec05345bd908eda73e670af888da41af171505"]}
     "400":
       description: "The topics supplied could not be parsed"
       content: