Add data columns sidecars debug beacon API (#7591)

Beacon API spec PR: https://github.com/ethereum/beacon-APIs/pull/537

common/eth2/src/types.rs

@@ -701,6 +701,13 @@ pub struct BlobIndicesQuery {
     pub indices: Option<Vec<u64>>,
 }
 
+#[derive(Clone, Deserialize)]
+#[serde(deny_unknown_fields)]
+pub struct DataColumnIndicesQuery {
+    #[serde(default, deserialize_with = "option_query_vec")]
+    pub indices: Option<Vec<u64>>,
+}
+
 #[derive(Clone, Serialize, Deserialize)]
 #[serde(transparent)]
 pub struct ValidatorIndexData(#[serde(with = "serde_utils::quoted_u64_vec")] pub Vec<u64>);