Fix witness endpoint for cdk (#773)

* Fix witness endpoint for cdk

* Fix

zero/src/rpc/jerigon.rs

@@ -8,6 +8,12 @@ use super::fetch_other_block_data;
 use crate::prover::BlockProverInput;
 use crate::provider::CachedProvider;
 
+const WITNESS_ENDPOINT: &str = if cfg!(feature = "cdk_erigon") {
+    "zkevm_getWitness"
+} else {
+    "eth_getWitness"
+};
+
 /// Transaction traces retrieved from Erigon zeroTracer.
 #[derive(Debug, Deserialize)]
 pub struct ZeroTxResult {
@@ -40,7 +46,7 @@ where
     let block_witness = cached_provider
         .get_provider()
         .await?
-        .raw_request::<_, String>("eth_getWitness".into(), vec![target_block_id])
+        .raw_request::<_, String>(WITNESS_ENDPOINT.into(), vec![target_block_id])
         .await?;
 
     let other_data =
@@ -51,7 +57,9 @@ where
         block_trace: BlockTrace {
             trie_pre_images: BlockTraceTriePreImages::Combined(CombinedPreImages {
                 compact: hex::decode(block_witness.strip_prefix("0x").unwrap_or(&block_witness))
-                    .context("invalid hex returned from call to eth_getWitness")?,
+                    .context(format!(
+                        "invalid hex returned from call to {WITNESS_ENDPOINT}"
+                    ))?,
             }),
             txn_info: tx_results.into_iter().map(|it| it.result).collect(),
             code_db: Default::default(),